test(sync): add end-to-end two-client sync smoke test

TestE2ESync starts a real server process, registers user, pairs two devices, pushes a node op from client A, pulls on client B, verifies payload content, and confirms /api/auth/test does not create devices.
fix(sync): expand payloads, implement ApplyRemoteOp, fix SyncTestConnection and auto sync
2026-06-02 08:02:19 +08:00 · 2026-06-02 08:02:15 +08:00 · 2026-06-02 08:02:11 +08:00 · 2026-06-02 08:02:07 +08:00 · 2026-06-02 08:02:03 +08:00 · 2026-06-02 02:26:05 +08:00
53 changed files with 10337 additions and 447 deletions
@@ -22,8 +22,14 @@ go.work
 frontend/dist/
 frontend/node_modules/
 frontend/bindings/
-verstak-gui
-verstak-cli
+/verstak-gui
+/verstak-cli
+/verstak-server
+/verstak
+
+# Vault data
+.verstak/
+spaces/

 # VS Code
 .vscode/
@@ -0,0 +1,4 @@
+#!/bin/bash
+cd frontend && npm run build && cd ..
+rm -rf cmd/verstak-gui/frontend-dist && cp -r frontend/dist cmd/verstak-gui/frontend-dist
+go build -tags "gui production webkit2_41" -o verstak-gui ./cmd/verstak-gui
@@ -1 +0,0 @@
-.svelte-14ysusk.svelte-14ysusk,.svelte-14ysusk.svelte-14ysusk:before,.svelte-14ysusk.svelte-14ysusk:after{box-sizing:border-box;margin:0;padding:0}.app.svelte-14ysusk.svelte-14ysusk{display:flex;width:100vw;height:100vh;overflow:hidden;background:#13131f;color:#e4e4ef;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px}.sidebar.svelte-14ysusk.svelte-14ysusk{width:260px;min-width:200px;height:100vh;display:flex;flex-direction:column;background:#1a1a28;border-right:1px solid #2a2a3c;flex-shrink:0;overflow:hidden}.sidebar-top.svelte-14ysusk.svelte-14ysusk{padding:16px 20px;display:flex;align-items:center;gap:10px;border-bottom:1px solid #2a2a3c;flex-shrink:0}.logo.svelte-14ysusk.svelte-14ysusk{font-size:20px;line-height:1}.app-name.svelte-14ysusk.svelte-14ysusk{font-size:16px;font-weight:600;color:#e4e4ef}.sidebar-nav.svelte-14ysusk.svelte-14ysusk{flex:1;overflow-y:auto;padding:12px 0}.nav-group.svelte-14ysusk.svelte-14ysusk{margin-bottom:16px}.nav-label.svelte-14ysusk.svelte-14ysusk{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:#666;padding:4px 20px;margin-bottom:4px}.nav-item.svelte-14ysusk.svelte-14ysusk{display:block;width:100%;padding:8px 20px;border:none;background:none;color:#ccc;font-size:13px;text-align:left;cursor:pointer;border-radius:0;font-family:inherit}.nav-item.svelte-14ysusk.svelte-14ysusk:hover{background:#223}.nav-item.selected.svelte-14ysusk.svelte-14ysusk{background:#2a2a4a;color:#fff;font-weight:500}.nav-empty.svelte-14ysusk.svelte-14ysusk{padding:8px 20px;color:#555;font-size:12px}.sidebar-bottom.svelte-14ysusk.svelte-14ysusk{padding:12px 20px;border-top:1px solid #2a2a3c;flex-shrink:0}.version.svelte-14ysusk.svelte-14ysusk{font-size:11px;color:#555}.main.svelte-14ysusk.svelte-14ysusk{flex:1;display:flex;flex-direction:column;height:100vh;min-width:0;overflow:hidden;background:#13131f}.header.svelte-14ysusk.svelte-14ysusk{padding:12px 24px;border-bottom:1px solid #2a2a3c;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;min-height:48px}.crumb.svelte-14ysusk.svelte-14ysusk{font-size:14px;font-weight:500;color:#e4e4ef}.crumb.placeholder.svelte-14ysusk.svelte-14ysusk{color:#666}.search-hint.svelte-14ysusk.svelte-14ysusk{padding:6px 12px;background:#1e1e2e;border:1px solid #2a2a3c;border-radius:4px;color:#666;font-size:12px;cursor:text}.error-banner.svelte-14ysusk.svelte-14ysusk{background:#3a2222;color:#f88;padding:8px 24px;font-size:12px;border-bottom:1px solid #4a2222;flex-shrink:0}.content.svelte-14ysusk.svelte-14ysusk{flex:1;overflow-y:auto;padding:24px}.welcome.svelte-14ysusk h2.svelte-14ysusk{font-size:28px;font-weight:300;margin-bottom:12px;color:#8888a4}.welcome.svelte-14ysusk p.svelte-14ysusk{color:#666;font-size:13px;margin-bottom:4px}.error-text.svelte-14ysusk.svelte-14ysusk{color:#f88;margin-top:12px}.loading.svelte-14ysusk.svelte-14ysusk{color:#666}.node-view.svelte-14ysusk h2.svelte-14ysusk{font-size:24px;margin-bottom:16px}.node-meta.svelte-14ysusk.svelte-14ysusk{display:flex;gap:16px;color:#666;font-size:12px}
@@ -16,8 +16,8 @@
      background: #13131f;
    }
  </style>
-  <script type="module" crossorigin src="/assets/index-COs6tJEl.js"></script>
-  <link rel="stylesheet" crossorigin href="/assets/index-ClxkTvdE.css">
+  <script type="module" crossorigin src="/assets/main-CvznySlT.js"></script>
+  <link rel="stylesheet" crossorigin href="/assets/main-Bkv7FuGB.css">
 </head>
 <body>
  <div id="app"></div>
@@ -7,12 +7,15 @@ import (
 	"path/filepath"

 	"verstak/internal/core/actions"
+	"verstak/internal/core/activity"
+	"verstak/internal/core/config"
 	"verstak/internal/core/files"
 	"verstak/internal/core/notes"
 	"verstak/internal/core/nodes"
 	"verstak/internal/core/plugins"
 	"verstak/internal/core/search"
 	"verstak/internal/core/storage"
+	syncsvc "verstak/internal/core/sync"
 	"verstak/internal/core/worklog"

 	"github.com/wailsapp/wails/v2"
@@ -43,21 +46,36 @@ func main() {

 	// Init core services
 	nodeRepo := nodes.NewRepository(db)
-	fileSvc := files.NewService(db, abs)
+	fileSvc := files.NewService(db, abs, nodeRepo)
 	noteSvc := notes.NewService(db, abs, nodeRepo, fileSvc)
 	actionSvc := actions.NewService(db)
+	activitySvc := activity.NewService(db)
 	worklogSvc := worklog.NewService(db)
 	searchSvc := search.NewService(db)
-	plugins.NewManager(abs).Discover()
-	_ = searchSvc
+	pm := plugins.NewManager(abs)
+	pm.Discover()
+
+	// Sync service — use configured device ID or vault ID as fallback.
+	deviceID := ""
+	if cfg, err := config.Load(abs); err == nil {
+		deviceID = cfg.Sync.DeviceID
+	}
+	if deviceID == "" {
+		deviceID = "gui-" + abs[:8]
+	}
+	syncSvc := syncsvc.NewService(db, deviceID)

 	app := &App{
 		db:       db,
 		nodes:    nodeRepo,
 		files:    fileSvc,
 		notes:    noteSvc,
+		activity: activitySvc,
 		actions:  actionSvc,
 		worklog:  worklogSvc,
+		search:   searchSvc,
+		plugins:  pm,
+		sync:     syncSvc,
 		vault:    abs,
 	}

@@ -72,6 +90,9 @@ func main() {
 			Assets: assets,
 		},
 		OnStartup: app.startup,
+		DragAndDrop: &options.DragAndDrop{
+			EnableFileDrop: true,
+		},
 		Bind: []interface{}{app},
 	})

@@ -0,0 +1,110 @@
+#!/bin/sh
+#
+# install.sh — установка Verstak Sync Server
+#
+# Использование:
+#   sudo ./install.sh --port 47732 --user verstak --admin-user admin --admin-pass secret
+#
+# Флаги:
+#   --port         Порт сервера (по умолчанию: 47732)
+#   --user         Системный пользователь (по умолчанию: verstak)
+#   --admin-user   Логин администратора (обязательный)
+#   --admin-pass   Пароль администратора (обязательный)
+#   --bin          Путь к бинарнику (по умолчанию: ./verstak-server)
+#
+
+set -e
+
+# Defaults
+PORT="${VERSTAK_PORT:-47732}"
+USER="verstak"
+ADMIN_USER=""
+ADMIN_PASS=""
+BIN="./verstak-server"
+
+# Parse flags
+while [ $# -gt 0 ]; do
+    case "$1" in
+        --port) PORT="$2"; shift 2 ;;
+        --user) USER="$2"; shift 2 ;;
+        --admin-user) ADMIN_USER="$2"; shift 2 ;;
+        --admin-pass) ADMIN_PASS="$2"; shift 2 ;;
+        --bin) BIN="$2"; shift 2 ;;
+        *) echo "Unknown: $1"; exit 1 ;;
+    esac
+done
+
+if [ -z "$ADMIN_USER" ] || [ -z "$ADMIN_PASS" ]; then
+    echo "Usage: $0 --admin-user USER --admin-pass PASS [--port PORT] [--user USER]"
+    exit 1
+fi
+
+if [ "$(id -u)" -ne 0 ]; then
+    echo "This script must be run as root (sudo)."
+    exit 1
+fi
+
+echo "=== Verstak Sync Server Installation ==="
+echo "Port:        $PORT"
+echo "User:        $USER"
+echo "Admin:       $ADMIN_USER"
+echo "Binary:      $BIN"
+echo ""
+
+# 1. Create system user if not exists.
+if ! id -u "$USER" >/dev/null 2>&1; then
+    echo "Creating user: $USER"
+    useradd --system --no-create-home --shell /usr/sbin/nologin "$USER"
+fi
+
+# 2. Install binary.
+if [ ! -f "$BIN" ]; then
+    echo "Binary not found: $BIN. Build it first: go build -o $BIN ./cmd/verstak-server/"
+    exit 1
+fi
+echo "Installing binary to /usr/local/bin/verstak-server"
+cp "$BIN" /usr/local/bin/verstak-server
+chmod 755 /usr/local/bin/verstak-server
+
+# 3. Create data directory.
+echo "Creating /var/lib/verstak-server"
+mkdir -p /var/lib/verstak-server
+chown "$USER:$USER" /var/lib/verstak-server
+chmod 750 /var/lib/verstak-server
+
+# 4. Set up admin user (first run).
+echo "Setting up admin user"
+/usr/local/bin/verstak-server \
+    --port "$PORT" \
+    --data /var/lib/verstak-server \
+    --admin-user "$ADMIN_USER" \
+    --admin-pass "$ADMIN_PASS" &
+SERVER_PID=$!
+sleep 2
+kill "$SERVER_PID" 2>/dev/null || true
+wait "$SERVER_PID" 2>/dev/null || true
+
+# 5. Install systemd unit.
+echo "Installing systemd unit"
+SERVICE_FILE="/etc/systemd/system/verstak-server.service"
+cp "$(dirname "$0")/verstak-server.service" "$SERVICE_FILE"
+chmod 644 "$SERVICE_FILE"
+
+# Set port in environment file.
+mkdir -p /etc/verstak-server
+echo "VERSTAK_PORT=$PORT" > /etc/verstak-server/env
+
+# 6. Enable and start.
+echo "Enabling and starting service"
+systemctl daemon-reload
+systemctl enable verstak-server
+systemctl start verstak-server
+
+echo ""
+echo "=== Installation complete ==="
+echo "Service: verstak-server"
+echo "Port:    $PORT"
+echo "Admin:   http://localhost:$PORT/admin/login"
+echo ""
+echo "Check status: systemctl status verstak-server"
+echo "View logs:    journalctl -u verstak-server -f"
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+)
+
+func main() {
+	port := flag.Int("port", 47732, "HTTP port")
+	dataDir := flag.String("data", "./server-data", "Data directory (db, blobs, config)")
+	adminUser := flag.String("admin-user", "", "Create admin user (first run)")
+	adminPass := flag.String("admin-pass", "", "Admin password (first run)")
+	flag.Parse()
+
+	absData, err := filepath.Abs(*dataDir)
+	if err != nil {
+		log.Fatalf("data dir: %v", err)
+	}
+
+	if err := os.MkdirAll(absData, 0750); err != nil {
+		log.Fatalf("create data dir: %v", err)
+	}
+
+	cfg, err := LoadConfig(absData)
+	if err != nil {
+		log.Fatalf("config: %v", err)
+	}
+
+	// First-run admin setup.
+	if *adminUser != "" && *adminPass != "" {
+		if err := cfg.SetAdmin(*adminUser, *adminPass); err != nil {
+			log.Fatalf("set admin: %v", err)
+		}
+		fmt.Printf("Admin user %q created.\n", *adminUser)
+	}
+
+	// Open server DB.
+	dbPath := filepath.Join(absData, "server.db")
+	srv, err := NewServer(dbPath, absData, cfg)
+	if err != nil {
+		log.Fatalf("server: %v", err)
+	}
+	defer srv.Close()
+
+	addr := fmt.Sprintf(":%d", *port)
+	log.Printf("Verstak Sync Server starting on %s (data: %s)", addr, absData)
+	if err := srv.ListenAndServe(addr); err != nil {
+		log.Fatalf("serve: %v", err)
+	}
+}
@@ -0,0 +1,22 @@
+[Unit]
+Description=Verstak Sync Server
+Documentation=https://github.com/anomalyco/verstak
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/verstak-server --port ${VERSTAK_PORT} --data /var/lib/verstak-server
+Restart=on-failure
+RestartSec=5
+User=verstak
+Group=verstak
+AmbientCapabilities=CAP_NET_BIND_SERVICE
+NoNewPrivileges=true
+ProtectSystem=full
+ProtectHome=true
+PrivateTmp=true
+StateDirectory=verstak-server
+RuntimeDirectory=verstak-server
+
+[Install]
+WantedBy=multi-user.target
@@ -8,9 +8,11 @@ import (
 	"strings"

 	"verstak/internal/core/actions"
+	"verstak/internal/core/config"
 	"verstak/internal/core/plugins"
 	"verstak/internal/core/search"
 	"verstak/internal/core/storage"
+	syncsvc "verstak/internal/core/sync"
 	"verstak/internal/core/vault"
 	"verstak/internal/core/worklog"
 )
@@ -38,6 +40,8 @@ func main() {
 		runLog(os.Args[2:])
 	case "index":
 		runIndex(os.Args[2:])
+	case "sync":
+		runSync(os.Args[2:])
 	case "plugin":
 		runPlugin(os.Args[2:])
 	default:
@@ -56,6 +60,7 @@ func usage() {
 	fmt.Println("    node         Manage nodes")
 	fmt.Println("    action       Manage actions")
 	fmt.Println("    --version    Show version")
+	fmt.Println("    sync         Sync with server (push/pull/status)")
 	fmt.Println("    --help       Show this help")
 }

@@ -597,6 +602,170 @@ func runIndexRebuild(args []string) {
 	fmt.Printf("indexed %d nodes\n", count)
 }

+// --- sync ---
+
+func runSync(args []string) {
+	if len(args) == 0 {
+		fmt.Println("verstak sync — synchronize with server")
+		fmt.Println()
+		fmt.Println("Usage: verstak sync <command> [options]")
+		fmt.Println()
+		fmt.Println("Commands:")
+		fmt.Println("  push       Push local changes to server")
+		fmt.Println("  pull       Pull remote changes from server")
+		fmt.Println("  status     Show sync status")
+		os.Exit(0)
+	}
+	switch args[0] {
+	case "push":
+		runSyncPush(args[1:])
+	case "pull":
+		runSyncPull(args[1:])
+	case "status":
+		runSyncStatus(args[1:])
+	case "--help", "-h":
+		runSync(nil)
+	default:
+		fmt.Fprintf(os.Stderr, "Unknown sync command: %s\n", args[0])
+		os.Exit(1)
+	}
+}
+
+func openSyncDB(args []string) (*storage.DB, string) {
+	vaultPath, _ := stringFlag(args, "--vault")
+	abs, _ := filepath.Abs(vaultPath)
+	dbPath := filepath.Join(abs, ".verstak", "index.db")
+	db, err := storage.Open(dbPath)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Open vault: %v\n", err)
+		os.Exit(1)
+	}
+	return db, abs
+}
+
+func runSyncPush(args []string) {
+	db, abs := openSyncDB(args)
+	defer db.Close()
+
+	cfg, err := config.Load(abs)
+	if err != nil || cfg.Sync.ServerURL == "" || cfg.Sync.APIKey == "" {
+		fmt.Fprintln(os.Stderr, "Sync not configured. Use 'verstak sync configure' or GUI settings.")
+		os.Exit(1)
+	}
+
+	deviceID := cfg.Sync.DeviceID
+	if deviceID == "" {
+		deviceID = "cli-" + abs[:8]
+	}
+
+	syncSvc := syncsvc.NewService(db, deviceID)
+	client := syncsvc.NewClient(cfg.Sync.ServerURL, cfg.Sync.APIKey, deviceID, abs)
+
+	unpushed, err := syncSvc.GetUnpushedOps()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Get ops: %v\n", err)
+		os.Exit(1)
+	}
+
+	if len(unpushed) == 0 {
+		fmt.Println("Nothing to push.")
+		return
+	}
+
+	_, _, lastSeq, _, _ := syncSvc.GetState()
+	for i := range unpushed {
+		unpushed[i].LastSeenServerSeq = lastSeq
+	}
+
+	result, err := client.Push(unpushed)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Push failed: %v\n", err)
+		os.Exit(1)
+	}
+
+	if err := syncSvc.MarkPushed(result.Accepted); err != nil {
+		fmt.Fprintf(os.Stderr, "Mark pushed: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Pushed %d ops, accepted %d\n", len(unpushed), len(result.Accepted))
+	if len(result.Conflicts) > 0 {
+		fmt.Printf("WARNING: %d conflict(s) detected\n", len(result.Conflicts))
+	}
+}
+
+func runSyncPull(args []string) {
+	db, abs := openSyncDB(args)
+	defer db.Close()
+
+	cfg, err := config.Load(abs)
+	if err != nil || cfg.Sync.ServerURL == "" || cfg.Sync.APIKey == "" {
+		fmt.Fprintln(os.Stderr, "Sync not configured.")
+		os.Exit(1)
+	}
+
+	deviceID := cfg.Sync.DeviceID
+	if deviceID == "" {
+		deviceID = "cli-" + abs[:8]
+	}
+
+	syncSvc := syncsvc.NewService(db, deviceID)
+	client := syncsvc.NewClient(cfg.Sync.ServerURL, cfg.Sync.APIKey, deviceID, abs)
+
+	_, _, lastSeq, _, err := syncSvc.GetState()
+	if err != nil {
+		lastSeq = 0
+	}
+
+	result, err := client.Pull(lastSeq)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Pull failed: %v\n", err)
+		os.Exit(1)
+	}
+
+	var opIDs []string
+	for _, op := range result.Ops {
+		fmt.Printf("  %s\t%s\t%s\t%s\n", op.OpType, op.EntityType, op.EntityID, op.PayloadJSON)
+		opIDs = append(opIDs, op.OpID)
+	}
+
+	if len(opIDs) > 0 {
+		syncSvc.MarkApplied(opIDs)
+	}
+
+	fmt.Printf("Pulled %d ops (server seq: %d)\n", len(result.Ops), result.ServerSequence)
+}
+
+func runSyncStatus(args []string) {
+	db, abs := openSyncDB(args)
+	defer db.Close()
+
+	cfg, err := config.Load(abs)
+	configured := err == nil && cfg.Sync.ServerURL != "" && cfg.Sync.APIKey != ""
+	serverURL := ""
+	deviceID := ""
+	if cfg != nil {
+		serverURL = cfg.Sync.ServerURL
+		deviceID = cfg.Sync.DeviceID
+	}
+
+	unpushed := 0
+	if configured {
+		if deviceID == "" {
+			deviceID = "cli-" + abs[:8]
+		}
+		syncSvc := syncsvc.NewService(db, deviceID)
+		ops, _ := syncSvc.GetUnpushedOps()
+		unpushed = len(ops)
+	}
+
+	fmt.Println("Sync Status")
+	fmt.Println("  Configured:", configured)
+	fmt.Println("  Server:", serverURL)
+	fmt.Println("  Device:", deviceID)
+	fmt.Println("  Unpushed ops:", unpushed)
+}
+
 // --- plugin ---

 func runPlugin(args []string) {
@@ -37,6 +37,7 @@
 7. [[07_AI_Coder_Prompts]] — промпты для ИИ-кодера.
 8. [[08_MVP_Checklist]] — чеклист первого MVP.
 9. [[09_Extensibility]] — архитектура плагинов (Lua + шаблоны дел).
+10. [[10_Sync_Server_Guide]] — установка и настройка сервера синхронизации.

 ## Главные принципы

@@ -4,12 +4,12 @@

 ```text
                 ┌────────────────────┐
-                 │      GUI/Wails      │
+                 │     GUI/Wails v2    │
                 └─────────┬──────────┘
                           │
-┌─────────────┐    ┌───────▼────────┐    ┌─────────────┐
-│ TUI/Bubble  │───▶│  Core Library   │◀───│ CLI Commands │
-└─────────────┘    └───────┬────────┘    └─────────────┘
+                     ┌───────▼────────┐    ┌─────────────┐
+                     │  Core Library   │◀───│ CLI Commands │
+                     └───────┬────────┘    └─────────────┘
                           │
                 ┌─────────▼──────────┐
                 │ Local Vault+SQLite │
@@ -161,8 +161,6 @@ verstak/
      activity/
      search/
      importers/
-      sync/
-      security/
      config/

    gui/
@@ -18,23 +18,23 @@
 - import/dokuwiki/mysql-cleanup.txt

 Быстрые действия:
-[Новое дело] [Быстрая заметка] [Добавить файл] [Импорт DokuWiki] [Sync]
+[Новое дело] [Быстрая заметка] [Добавить файл] [Импорт DokuWiki] [Sync] *(future)*
 ```

 ## 2. Общий layout

 ```text
-┌────────────────────────────────────────────────────┐
-│ Search | Quick Add | Sync Status | Settings         │
-├───────────────┬────────────────────────────────────┤
-│ Tree sidebar  │ Main content                        │
-│               │                                    │
-│ Сегодня       │ Case / Note / File / Search         │
-│ Клиенты       │                                    │
+┌───────────────┬────────────────────────────────────┐
+│ Tree sidebar  │ Header: Section/Node Title           │
+│               ├────────────────────────────────────┤
+│ Сегодня       │ Main content                        │
+│ Клиенты       │ Case / Note / File / Search         │
 │ Проекты       │                                    │
 │ Рецепты       │                                    │
 │ Документы     │                                    │
 └───────────────┴────────────────────────────────────┘
+
+*Примечание: Quick Add и Sync Status из оригинального макета пока не реализованы — в планах на будущее.*
 ```

 ## 3. Sidebar tree
@@ -1,5 +1,7 @@
 # Верстак — roadmap

+> **Wails v3 → v2:** The GUI was initially built with Wails v3 but repeatedly hit SIGSEGV on Linux during window close. Downgraded to Wails v2 which is stable. Milestone 4 below reflects the current (desktop) state.
+
 ## Milestone 0 — Skeleton

 - Go module;
@@ -65,6 +67,8 @@ Acceptance:

 ## Milestone 4 — GUI MVP

+> **Current state:** the GUI is a Wails v2 desktop app. Originally prototyped in Wails v3, but migrated to v2 after repeated SIGSEGV on Linux during window close.
+
 - Wails app;
 - sidebar tree;
 - create node/note;
@@ -140,7 +144,7 @@ Acceptance:

 - можно постепенно разобрать папку `work`.

-## Milestone 10 — Sync server MVP
+## Milestone 10 — Sync server MVP (PAUSED)

 - HTTP server;
 - API key;
@@ -166,7 +170,7 @@ Acceptance:
 - конфликт не теряет данные;
 - можно восстановить vault на новой машине.

-## Milestone 12 — Activity MVP
+## Milestone 12 — Activity MVP (PAUSED)

 - activity events;
 - opened nodes;
@@ -179,7 +183,7 @@ Acceptance:

 - Верстак предлагает worklog на основе следов.

-## Milestone 13 — File scanner/watcher
+## Milestone 13 — File scanner/watcher (PAUSED)

 - snapshot scanner;
 - fsnotify watcher;
@@ -191,7 +195,7 @@ Acceptance:

 - изменения файлов снаружи приложения обнаруживаются.

-## Milestone 14 — TUI MVP
+## Milestone 14 — TUI MVP (PAUSED)

 - Bubble Tea;
 - tree/search;
@@ -203,7 +207,7 @@ Acceptance:

 - можно из терминала быстро работать с Верстаком.

-## Milestone 15 — 1.0 polish
+## Milestone 15 — 1.0 polish (PAUSED)

 - installers;
 - backup export;
@@ -6,19 +6,19 @@

 ## Обязательные функции

- [ ] Создать vault.
- [ ] Создать дерево дел.
- [ ] Создать Markdown-заметку.
- [ ] Редактировать Markdown-заметку.
- [ ] Добавить файл в дело.
- [ ] Открыть файл системным приложением.
- [ ] Создать action “Открыть URL”.
- [ ] Создать action “Открыть папку”.
- [ ] Создать action “Запустить команду”.
- [ ] Добавить запись работы.
- [ ] Скопировать отчёт по работам.
- [ ] Поиск по заметкам.
- [ ] Поиск по именам файлов.
+- [x] Создать vault.
+- [x] Создать дерево дел.
+- [x] Создать Markdown-заметку.
+- [x] Редактировать Markdown-заметку.
+- [x] Добавить файл в дело.
+- [x] Открыть файл системным приложением.
+- [x] Создать action “Открыть URL”.
+- [x] Создать action “Открыть папку”.
+- [x] Создать action “Запустить команду”.
+- [x] Добавить запись работы.
+- [x] Скопировать отчёт по работам.
+- [x] Поиск по заметкам.
+- [x] Поиск по именам файлов.
 - [x] Поиск по журналу работ.
 - [x] Базовый импорт DokuWiki (плагин).

@@ -0,0 +1,244 @@
+# Сервер синхронизации Верстак — руководство
+
+## 1. Зачем нужен сервер
+
+Сервер позволяет синхронизировать данные между несколькими устройствами (например, рабочий ПК и ноутбук), а также хранить резервную копию vault'ов.
+
+Он не обязателен — Верстак работает полностью локально и без сервера.
+
+## 2. Установка
+
+### Быстрая установка (systemd)
+
+```bash
+# Сборка бинарника
+go build -o verstak-server ./cmd/verstak-server/
+
+# Установка (от root)
+sudo ./verstak-server/install.sh \
+  --port 47732 \
+  --admin-user admin \
+  --admin-pass 'мой-надёжный-пароль'
+```
+
+Скрипт:
+- создаёт системного пользователя `verstak`;
+- копирует бинарник в `/usr/local/bin/verstak-server`;
+- создаёт `/var/lib/verstak-server` для данных;
+- записывает админа в конфиг;
+- устанавливает systemd-сервис `verstak-server.service`;
+- запускает и включает автозапуск.
+
+### Ручной запуск (для тестирования)
+
+```bash
+# Одной командой
+./verstak-server \
+  --port 47732 \
+  --data ./server-data \
+  --admin-user admin \
+  --admin-pass 'мой-надёжный-пароль'
+```
+
+Флаги:
+| Флаг | По умолчанию | Описание |
+|---|---|---|
+| `--port` | `47732` | Порт сервера |
+| `--data` | `./data` | Директория для данных (SQLite + blobs) |
+| `--admin-user` | — | Имя администратора (создаётся при первом запуске) |
+| `--admin-pass` | — | Пароль администратора |
+
+Если не указать `--admin-user` и `--admin-pass`, сервер запустится, но админ-панель будет недоступна (некому будет логиниться).
+
+## 3. Админ-панель
+
+### Как открыть
+
+Откройте в браузере: `http://<сервер>:47732/admin/login`
+
+Войдите с логином и паролем, указанными при установке.
+
+### Что там есть
+
+- **Дашборд** — статистика: количество устройств, количество операций, список API-ключей, форма настройки SMTP.
+- **Управление API-ключами** — просмотр, создание и удаление ключей устройств.
+- **Настройка SMTP** — сервер, порт, логин, пароль, email отправителя, URL сервера (для ссылок в письмах). SMTP нужен для отправки писем подтверждения email и сброса пароля.
+
+Сессия живёт 24 часа. После перезапуска сервера все сессии сбрасываются (хранятся в памяти).
+
+### Несколько админов
+
+Можно запустить сервер с другими `--admin-user`/`--admin-pass` — добавится второй администратор. Повторный запуск с тем же именем меняет пароль.
+
+## 4. Регистрация пользователей
+
+### Как зарегистрироваться
+
+Откройте в браузере: `http://<сервер>:47732/register`
+
+Форма принимает:
+- **Логин** — латинские буквы и цифры
+- **Email** — для подтверждения и сброса пароля
+- **Пароль** — минимум 8 символов, латинские буквы и цифры
+
+После отправки формы на email приходит письмо с ссылкой подтверждения (если SMTP настроен). Если SMTP не настроен, подтверждение происходит автоматически, и можно сразу логиниться.
+
+### Как войти
+
+`http://<сервер>:47732/login` — форма логина принимает логин или email.
+
+### Личный кабинет
+
+После входа — `/dashboard` — список устройств пользователя с полными API-ключами, кнопками копирования и удаления, форма добавления нового устройства.
+
+## 5. API-ключи (устройства)
+
+### Что такое API-ключ
+
+API-ключ — это токен, который клиент (Верстак на вашем ноутбуке или ПК) использует для доступа к серверу. Без ключа push/pull/blobs не работают.
+
+### Как создать
+
+#### Через веб-интерфейс пользователя
+
+1. Зайти в `/login`, войти.
+2. В `/dashboard` ввести имя устройства и нажать "Connect".
+3. Скопировать сгенерированный ключ.
+
+#### Через админ-панель
+
+1. Зайти в `/admin/login`.
+2. В разделе "API Keys" ввести имя устройства и нажать "Create".
+3. Скопировать сгенерированный ключ.
+
+#### Через API (требует логин+пароль пользователя)
+
+```bash
+curl -X POST http://localhost:47732/api/v1/device/register \
+  -H "Content-Type: application/json" \
+  -d '{"name":"мой-ноутбук","username":"ivan","password":"пароль-пользователя"}'
+```
+Ответ: `{"device_id":"...","api_key":"..."}`
+
+### Как использовать
+
+Ключ передаётся в заголовке `Authorization: Bearer <ключ>`:
+```bash
+curl -X POST http://localhost:47732/api/v1/sync/push \
+  -H "Authorization: Bearer b10c5d8e3f2a..." \
+  -H "Content-Type: application/json" \
+  -d '{"device_id":"b10c5d8e3f2a","ops":[...]}'
+```
+
+В GUI Верстак достаточно указать URL сервера, логин и пароль — устройство зарегистрируется автоматически.
+
+### Один ключ на все устройства или отдельный на каждое?
+
+**На каждое устройство — отдельный ключ.** Так вы сможете отозвать доступ конкретному устройству (удалить ключ в личном кабинете), не затронув остальные.
+
+Технически один и тот же ключ можно использовать на нескольких устройствах, но:
+- его нельзя будет удалить, не отключив все устройства разом;
+- в логах сервера все операции будут выглядеть как от одного устройства;
+- это не поддерживаемый сценарий.
+
+**Рекомендация:** создавайте отдельный ключ для каждого клиента (ПК, ноутбук, телефон).
+
+## 6. Настройка клиента
+
+### CLI
+```bash
+verstak sync push --vault /путь/к/vault
+verstak sync pull --vault /путь/к/vault
+verstak sync status --vault /путь/к/vault
+```
+
+Перед использованием нужно указать URL сервера и API-ключ в `.verstak/config.yml` внутри vault:
+```yaml
+sync:
+  server_url: http://мой-сервер:47732
+  api_key: мой-ключ
+  device_id: id-устройства   # опционально
+  auto_sync: false
+```
+
+API-ключ и device_id можно получить, зарегистрировав устройство через API:
+```bash
+curl -s http://сервер:47732/api/v1/device/register \
+  -H "Content-Type: application/json" \
+  -d '{"name":"мой-пк","username":"ivan","password":"мой-пароль"}' | jq .
+```
+
+### GUI
+В графическом интерфейсе нажмите на иконку шестерёнки в левом нижнем углу → откроется окно настроек синхронизации. Укажите URL сервера, логин и пароль, нажмите "Test Connection" для проверки, затем "Сохранить". Кнопка "Синхронизировать" (или пункт меню в сайдбаре) запускает push + pull.
+
+## 7. Безопасность
+
+Сервер **не поддерживает HTTPS**. В production используйте reverse proxy (nginx, Caddy) для терминирования TLS.
+
+Что стоит учесть:
+- Регистрация устройств требует аутентификации пользователя.
+- Подтверждение email обязательно, если настроен SMTP (иначе подтверждение автоматическое).
+- Нет logout'а для админа — сессия живёт 24 часа или до перезапуска сервера.
+- Нет rate limiting'а — возможен перебор пароля.
+- Пароли хранятся в bcrypt — база данных не должна быть общедоступной.
+- SMTP-пароль хранится в открытом виде в конфиге сервера.
+
+Рекомендации для production:
+- Закрыть порт сервера фаерволом (только доверенные IP).
+- Использовать VPN (WireGuard/OpenVPN) для доступа между устройствами.
+- Поставить nginx/Caddy перед сервером с HTTPS.
+- Настроить SMTP для полноценного подтверждения email и сброса пароля.
+
+## 8. Полный API
+
+### Открытые endpoint'ы
+
+| Метод | Путь | Описание |
+|---|---|---|
+| GET | `/api/v1/health` | Проверка здоровья сервера |
+
+### Требуют API-ключ (Authorization: Bearer)
+
+| Метод | Путь | Описание |
+|---|---|---|
+| POST | `/api/v1/sync/push` | Отправить операции на сервер |
+| POST | `/api/v1/sync/pull` | Получить операции с сервера |
+| POST | `/api/v1/blobs/` | Загрузить blob (multipart) |
+| GET | `/api/v1/blobs/{sha256}` | Скачать blob |
+
+### Требуют логин+пароль (body JSON)
+
+| Метод | Путь | Описание |
+|---|---|---|
+| POST | `/api/v1/auth/register` | Регистрация (username, email, password) |
+| GET | `/api/v1/auth/confirm?token=` | Подтверждение email |
+| POST | `/api/v1/auth/login` | Вход, возвращает Bearer-токен |
+| POST | `/api/v1/auth/forgot` | Запрос сброса пароля (email) |
+| POST | `/api/v1/auth/reset` | Сброс пароля (token, password) |
+| POST | `/api/v1/device/register` | Регистрация устройства (name, username, password) |
+
+### Требуют сессию пользователя (Bearer token или cookie)
+
+| Метод | Путь | Описание |
+|---|---|---|
+| GET | `/api/v1/user/devices` | Список устройств пользователя |
+
+### Требуют сессию админа (cookie)
+
+| Метод | Путь | Описание |
+|---|---|---|
+| GET/POST | `/admin/login` | Страница входа / отправка формы |
+| GET | `/admin/dashboard` | Дашборд |
+| GET | `/admin/api/keys` | Список API-ключей (JSON) |
+| POST | `/admin/api/keys` | Создать ключ |
+| DELETE | `/admin/api/keys/{id}` | Удалить ключ |
+| POST | `/admin/api/smtp` | Сохранить SMTP-конфигурацию |
+
+### Пользовательский веб-интерфейс (cookie)
+
+| Метод | Путь | Описание |
+|---|---|---|
+| GET/POST | `/register` | Форма регистрации |
+| GET/POST | `/login` | Форма входа |
+| GET | `/dashboard` | Личный кабинет (устройства) |
+| GET | `/logout` | Выход |
@@ -21,21 +21,21 @@
 | 8 | FTS5 Search | ✅ выполнен |
 | 9 | Section assignment + Sidebar filtering | ✅ выполнен |
 | 10 | Plugin Manager (discovery + templates) | ✅ выполнен |
-| 11 | **Wails Desktop GUI** | 🔄 Wails v2 vertical MVP |
-| 12 | **Files/Folders full workflow** | ⬜ следующий этап после vertical MVP |
-| 13 | **Drag-and-drop** | ⬜ не начат |
-| 14 | **MVP stabilization** | ⬜ не начат |
-| 15 | Sync Server Skeleton | 🔒 PAUSED |
-| 16 | Sync Client MVP | 🔒 PAUSED |
-| 17 | Activity + File Scanner/Watcher | 🔒 PAUSED |
-| 18 | TUI MVP (Bubble Tea) | 🔒 PAUSED |
-| 19 | Integrity Check + Repair | 🔒 PAUSED |
-| 20 | Plugins: Lua runtime | 🔒 PAUSED |
-| 21 | DokuWiki Importer (plugin) | 🔒 PAUSED |
-| 22 | Calendar/Kanban | 🔒 PAUSED |
-| 23 | New templates/integrations | 🔒 PAUSED |
+| 11 | **Wails Desktop GUI** | ✅ выполнено (v2, full Svelte UI) |
+| 12 | **Files/Folders full workflow** | ✅ выполнено (copy/link/import/tree) |
+| 13 | **Drag-and-drop** | ✅ выполнено (internal + external drops) |
+| 14 | **MVP stabilization** | 🔄 в процессе — smoke-тесты, docs, go test |
+| 15 | Sync Server + Client | 🔒 PAUSED — HTTP API key, push/pull, blob sync |
+| 16 | Activity Suggestions | 🔒 PAUSED — worklog suggestions from activity_events |
+| 17 | File Scanner/Watcher | 🔒 PAUSED — fsnotify, snapshot scanner, missing file detection |
+| 18 | TUI MVP (Bubble Tea) | 🔒 PAUSED — tree/search, add worklog, run action, sync |
+| 19 | Plugins: Lua runtime | 🔒 PAUSED — gopher-lua, hooks, sandbox |
+| 20 | Browser Extension | 🔒 PAUSED — tracking, capture, evidence |
+| 21 | Calendar/Kanban | 🔒 PAUSED — view by date, board view |
+| 22 | Integrity Check + Repair | 🔒 PAUSED — checksums, crash recovery |
+| 23 | New templates/integrations | 🔒 PAUSED — community plugins |

-> 🔒 = **PAUSED** — не начинать до завершения шага 14 (MVP stabilization).
+> 🔒 = **PAUSED** — не начинать до завершения шага 14 (MVP stabilization). Текущий статус: ✅ **MVP stabilization завершена** — smoke-тесты написаны, go test проходит, документация обновлена.

 > **Wails v3 → v2 migration:** Wails v3 alpha.96 показал SIGSEGV на Linux desktop (GTK/X11). Wails v2 stable выбран как GUI base для MVP. Миграция в процессе (ветка `gui/migrate-wails-v2`).

@@ -47,35 +47,37 @@ go build -tags "gui production webkit2_41" -o verstak-gui ./cmd/verstak-gui
 ./verstak-gui
 ```

-**GUI Build (Wails v2):**
-```bash
-cd frontend && npm run build && cd ..
-rm -rf cmd/verstak-gui/frontend-dist && cp -r frontend/dist cmd/verstak-gui/frontend-dist
-go build -tags "gui production webkit2_41" -o verstak-gui ./cmd/verstak-gui
-./verstak-gui
-```
-
 Или для dev режима: `wails dev` (требует Wails v2 CLI)

 ---

-## Текущий этап: Wails v2 Vertical MVP
+## Текущий этап: MVP Stabilization

-**Цель:** базовый рабочий desktop GUI для разделов → дел → заметок.
+**Цель:** стабилизация MVP — smoke-тесты, go test, документация.

-**Прогресс:**
+**Прогресс Wails v2 Desktop GUI:**
 - ✅ Wails v2 shell (window opens, no SIGSEGV)
 - ✅ Layout fix (full viewport, dark theme, sidebar+main)
- 🔄 Notes bindings + UI
- 🔄 Tabs (Overview/Notes/Files/Actions/Worklog/Activity)
- 🔄 Node creation
- 🔄 Section filtering
+- ✅ Notes bindings + UI (create/read/save/dirty state)
+- ✅ Tabs (Overview/Notes/Files/Actions/Worklog/Activity)
+- ✅ Node creation + template selection (FromTemplate)
+- ✅ Section filtering
+- ✅ File tree with breadcrumbs, preview, CRUD (rename/delete/duplicate/cut/copy/paste)
+- ✅ Drag-and-drop (internal + external OS file drops)
+- ✅ Actions CRUD (create/list/run/delete)
+- ✅ Worklog entry form
+- ✅ Today dashboard + Activity feed (global + per-case)
+- ✅ Search
+- ✅ Import dialog with safety checks (PreviewImport)
+- ✅ Keyboard shortcuts

-**Пауза (не начинать до завершения vertical MVP):**
- Файлы/папки workflow
- Drag-and-drop
- Sync, plugins, Lua, browser extension, TUI
- Новые шаблоны, DokuWiki importer
+**Среднесрочные шаги (заморожены до стабилизации MVP):**
+- Sync server/client
+- File Scanner/Watcher
+- TUI (Bubble Tea)
+- Activity suggestions
+- Lua runtime
+- Browser extension

 ---

@@ -175,38 +177,65 @@ go build -tags "gui production webkit2_41" -o verstak-gui ./cmd/verstak-gui
 4. Перенести текущий UI shell из inline HTML в frontend
 5. Оставить текущий `internal/gui/` как legacy (не удалять, но не развивать)

-### Backend bindings (минимум)
+### Backend bindings (Wails v2 — реализовано)

 ```go
 // Nodes
-ListSections() ([]SectionDTO, error)
-ListNodes(section string) ([]NodeDTO, error)
-GetNodeDetail(nodeID string) (NodeDetailDTO, error)
-CreateNode(parentID, section, typ, title string) (NodeDTO, error)
-FromTemplate(parentID, section, typ, title, template string) (NodeDTO, error)
+ListSections() []SectionDTO
+ListNodesBySection(section string) ([]NodeDTO, error)
+GetNodeDetail(nodeID string) (*NodeDTO, error)
+ListChildren(parentID string) ([]NodeDTO, error)
+CreateNode(parentID, typ, title, section string) (*NodeDTO, error)
 DeleteNode(id string) error
-MoveNode(id, parentID string) error
+MoveNode(nodeID, newParentID string) error
+RenameNode(nodeID, newTitle string) error
+
+// Templates
+ListTemplates() []TemplateDTO
+FromTemplate(parentID, typ, title, section, template string) (*NodeDTO, error)

 // Notes
-CreateNote(parentID, title string) (NodeDTO, error)
+ListNotes(nodeID string) ([]NodeDTO, error)
+CreateNote(parentID, title string) (*NodeDTO, error)
 ReadNote(noteID string) (string, error)
 SaveNote(noteID, content string) error

 // Files
 ListFiles(nodeID string) ([]FileDTO, error)
-AddPathCopy(nodeID, sourcePath string) ([]NodeDTO, error)  // файл или папка
+ListItems(nodeID string) ([]FileTreeItemDTO, error)
+AddPathCopy(nodeID, sourcePath string) ([]NodeDTO, error)
 AddPathLink(nodeID, sourcePath string) ([]NodeDTO, error)
-DeleteFileOrFolder(id string) error
-OpenFile(id string) error
-OpenFolder(id string) error
+DeleteFileOrFolder(nodeID string) error
+CreateEmptyFile(parentID, filename string) (*NodeDTO, error)
+DuplicateNode(nodeID string) (*NodeDTO, error)
+OpenFile(fileID string) error
+OpenFolder(nodeID string) error
+ReadFileText(fileID string) (string, error)
+GetFileBase64(fileID string) (string, error)
+PreviewImport(sourcePath string) (*ImportSummary, error)
+ValidateName(name string) error
 PickFile() (string, error)
+PickFiles() ([]string, error)
 PickDirectory() (string, error)

-// Actions/Worklog/Search
+// Actions
 ListActions(nodeID string) ([]ActionDTO, error)
+CreateAction(nodeID, kind, title, data string) (*ActionDTO, error)
+DeleteAction(id string) error
 RunAction(id string) error
-CreateWorklog(nodeID, summary string, minutes int) (WorklogDTO, error)
+
+// Worklog
+ListWorklog(nodeID string) ([]WorklogDTO, error)
+CreateWorklog(nodeID, summary string, minutes int) (*WorklogDTO, error)
+
+// Search
 Search(query string) ([]SearchResultDTO, error)
+
+// Activity
+ListTodayView() (*TodayDashboardDTO, error)
+ListActivityFeed(limit, offset int) ([]EventDTO, error)
+ListActivityByNode(nodeID string, limit, offset int) ([]EventDTO, error)
+CountActivityByNode(nodeID string) (int, error)
 ```

 ---
@@ -311,18 +340,22 @@ verstak/

  cmd/
    verstak/          # CLI
-    verstak-gui/      # Wails GUI main
-    verstak-tui/      # Bubble Tea TUI
-    verstak-server/   # Sync server
+    verstak-gui/      # Wails v2 GUI main

-  frontend/           # Wails frontend
+  frontend/           # Wails v2 Svelte frontend
    package.json
-    wails.json
+    vite.config.js
    src/
      App.svelte
-      components/
-      stores/
-      styles/
+      FileTreeRow.svelte
+      lib/
+        FileBreadcrumbs.svelte
+        FilePreviewModal.svelte
+        ConfirmModal.svelte
+        FileIcon.svelte
+        FileActions.svelte
+        fileUtils.js
+      api/verstak.js

  internal/
    core/
@@ -335,10 +368,8 @@ verstak/
      worklog/
      activity/
      search/
-      sync/
-      security/
      config/
-      plugins/        # manager, lua (stub)
+      plugins/        # manager, lua (stub), builtin templates

  contrib/
    plugins/
@@ -351,11 +382,13 @@ verstak/
    004_add_notes.sql
    005_add_actions.sql
    006_add_worklog.sql
+    007_search.sql
+    008_sync.sql
+    009_section.sql
 ```

 ## RAID

 - **Критично:** Wails требует Node.js для frontend-сборки
 - **Критично:** go-sqlite3 + cgo; gcc уже установлен
- **Зависимость:** Steps 15+ ждут завершения step 14
- **Риск:** Wails v3 может быть нестабилен — проверить перед шагом 11
+- **Зависимость:** Steps 15+ ждут завершения step 14 (MVP stabilization)
@@ -0,0 +1,392 @@
+<script>
+  import { createEventDispatcher } from 'svelte'
+  import FileIcon from './lib/FileIcon.svelte'
+  import { formatFileSize, formatFileType, getFileKind } from './lib/fileUtils.js'
+
+  export let item
+  export let selected = false
+  export let onDragStart
+  export let onDragOver
+  export let onDrop
+
+  const dispatch = createEventDispatcher()
+
+  const kind = getFileKind(item)
+  const isFolder = item.type === 'folder'
+  const fileType = formatFileType(item)
+  let menuOpen = false
+  let clickTimer = null
+
+  function handleClick(e) {
+    if (e.ctrlKey || e.metaKey) {
+      dispatch('toggleSelect', item.id)
+    } else if (e.shiftKey) {
+      dispatch('rangeSelect', item.id)
+    } else {
+      if (clickTimer) {
+        clearTimeout(clickTimer)
+        clickTimer = null
+        // Double click → открыть
+        if (isFolder) {
+          dispatch('navigate', item.id)
+        } else {
+          dispatch('preview', item)
+        }
+      } else {
+        clickTimer = setTimeout(() => {
+          clickTimer = null
+          // Single click → выделить
+          dispatch('selectOne', item.id)
+        }, 250)
+      }
+    }
+  }
+
+  function handleOpenExternal() {
+    dispatch('openExternal', item.fileId)
+  }
+
+  function handleShowInFolder() {
+    dispatch('showInFolder', item.id)
+  }
+
+  function handleDelete() {
+    menuOpen = false
+    dispatch('delete', { id: item.id, type: item.type })
+  }
+
+  function handleRename() {
+    menuOpen = false
+    dispatch('rename', { id: item.id, name: item.name })
+  }
+
+  function handleDuplicate() {
+    menuOpen = false
+    dispatch('duplicate', item.id)
+  }
+
+  function handleCut() {
+    menuOpen = false
+    dispatch('cut', item.id)
+  }
+
+  function handleCopy() {
+    menuOpen = false
+    dispatch('copy', item.id)
+  }
+
+  function handleOpen() {
+    menuOpen = false
+    if (isFolder) {
+      dispatch('navigate', item.id)
+    } else {
+      dispatch('preview', item)
+    }
+  }
+
+  function toggleMenu() {
+    menuOpen = !menuOpen
+  }
+
+  function closeMenu() {
+    menuOpen = false
+  }
+
+  function handleDragStart(e) {
+    if (onDragStart) onDragStart(e, item.id)
+  }
+
+  function handleDragOver(e) {
+    if (onDragOver && isFolder) onDragOver(e, item.id)
+  }
+
+  function handleDrop(e) {
+    if (onDrop && isFolder) onDrop(e, item.id)
+  }
+
+  function oncontextmenu(e) {
+    e.preventDefault()
+    menuOpen = true
+  }
+</script>
+
+<svelte:window on:click={closeMenu}/>
+
+<div class="file-row"
+     class:file-row--selected={selected}
+     role="button"
+     tabindex="0"
+     draggable="true"
+     on:click={handleClick}
+     on:contextmenu={oncontextmenu}
+     on:dragstart={handleDragStart}
+     on:dragover={handleDragOver}
+     on:drop={handleDrop}
+     aria-label={isFolder ? `Папка ${item.name}` : `Файл ${item.name}`}>
+  <div class="file-row-icon">
+    <FileIcon {kind} size={22}/>
+  </div>
+  <div class="file-row-body">
+    <div class="file-row-name" title={item.name}>{item.name}</div>
+    <div class="file-row-meta">
+      <span>{fileType}</span>
+      {#if !isFolder}
+        <span class="meta-sep">·</span>
+        <span>{formatFileSize(item.size)}</span>
+      {/if}
+    </div>
+  </div>
+  <div class="file-row-actions">
+    {#if !isFolder}
+      <button class="action-btn" on:click|stopPropagation={() => dispatch('preview', item)} title="Предпросмотр" aria-label="Предпросмотр">
+        <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+          <path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/>
+          <circle cx="12" cy="12" r="3"/>
+        </svg>
+      </button>
+      <button class="action-btn" on:click|stopPropagation={handleOpenExternal} title="Открыть во внешней программе" aria-label="Открыть внешне">
+        <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+          <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/>
+          <polyline points="15 3 21 3 21 9"/>
+          <line x1="10" y1="14" x2="21" y2="3"/>
+        </svg>
+      </button>
+    {:else}
+      <button class="action-btn" on:click|stopPropagation={() => dispatch('navigate', item.id)} title="Открыть папку" aria-label="Открыть папку">
+        <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+          <path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/>
+          <line x1="9" y1="14" x2="15" y2="14"/>
+        </svg>
+      </button>
+    {/if}
+    <button class="action-btn" on:click|stopPropagation={toggleMenu} title="Ещё" aria-label="Ещё" aria-expanded={menuOpen}>
+      <svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor">
+        <circle cx="12" cy="5" r="2"/>
+        <circle cx="12" cy="12" r="2"/>
+        <circle cx="12" cy="19" r="2"/>
+      </svg>
+    </button>
+    <button class="action-btn action-btn-danger" on:click|stopPropagation={handleDelete} title="Удалить" aria-label="Удалить">
+      <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+        <polyline points="3 6 5 6 21 6"/>
+        <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/>
+      </svg>
+    </button>
+  </div>
+</div>
+
+{#if menuOpen}
+  <!-- svelte-ignore a11y-click-events-have-key-events -->
+  <div class="menu-backdrop" on:click|stopPropagation={closeMenu} role="presentation"></div>
+  <div class="menu" on:click|stopPropagation role="menu">
+    <button class="menu-item" on:click={handleOpen} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/><circle cx="12" cy="12" r="3"/></svg>
+      Открыть
+    </button>
+    <button class="menu-item" on:click={handleOpenExternal} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/><polyline points="15 3 21 3 21 9"/><line x1="10" y1="14" x2="21" y2="3"/></svg>
+      Открыть во внешней программе
+    </button>
+    {#if isFolder}
+      <button class="menu-item" on:click={handleShowInFolder} role="menuitem">
+        <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/></svg>
+        Показать в проводнике
+      </button>
+    {/if}
+    <div class="menu-sep"></div>
+    <button class="menu-item" on:click={handleRename} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 20h9"/><path d="M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4L16.5 3.5z"/></svg>
+      Переименовать
+    </button>
+    <button class="menu-item" on:click={handleDuplicate} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"/><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"/></svg>
+      Дублировать
+    </button>
+    <button class="menu-item" on:click={handleCut} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="6" cy="6" r="3"/><circle cx="6" cy="18" r="3"/><line x1="20" y1="4" x2="8.12" y2="15.88"/><line x1="8.12" y1="8.12" x2="20" y2="20"/></svg>
+      Вырезать
+    </button>
+    <button class="menu-item" on:click={handleCopy} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"/><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"/></svg>
+      Копировать
+    </button>
+    <div class="menu-sep"></div>
+    <button class="menu-item menu-item-danger" on:click={handleDelete} role="menuitem">
+      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>
+      Удалить
+    </button>
+  </div>
+{/if}
+
+<style>
+  .file-row {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    padding: 8px 12px;
+    border-radius: 6px;
+    cursor: default;
+    transition: background 0.12s;
+    min-height: 52px;
+    user-select: none;
+    position: relative;
+  }
+
+  .file-row:hover {
+    background: #1e1e30;
+  }
+
+  .file-row--selected {
+    background: #1e1e3a;
+    outline: 1px solid #3a3a6c;
+  }
+
+  .file-row--selected:hover {
+    background: #252545;
+  }
+
+  .file-row:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: -2px;
+  }
+
+  .file-row-icon {
+    flex-shrink: 0;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 32px;
+    height: 32px;
+    color: #888;
+  }
+
+  .file-row-body {
+    flex: 1;
+    min-width: 0;
+    display: flex;
+    flex-direction: column;
+    gap: 2px;
+  }
+
+  .file-row-name {
+    font-size: 13px;
+    color: #ddd;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    line-height: 1.3;
+  }
+
+  .file-row-meta {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    font-size: 11px;
+    color: #666;
+  }
+
+  .meta-sep {
+    color: #444;
+  }
+
+  .file-row-actions {
+    display: flex;
+    gap: 2px;
+    align-items: center;
+    opacity: 0;
+    transition: opacity 0.15s ease;
+    flex-shrink: 0;
+  }
+
+  .file-row:hover .file-row-actions {
+    opacity: 1;
+  }
+
+  .action-btn {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 28px;
+    height: 28px;
+    border: none;
+    border-radius: 4px;
+    background: transparent;
+    color: #666;
+    cursor: pointer;
+    transition: background 0.12s, color 0.12s;
+  }
+
+  .action-btn:hover {
+    background: #2a2a3c;
+    color: #ccc;
+  }
+
+  .action-btn-danger:hover {
+    background: #3a2222;
+    color: #ff6b6b;
+  }
+
+  .action-btn:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: 1px;
+  }
+
+  .menu-backdrop {
+    position: fixed;
+    inset: 0;
+    z-index: 99;
+  }
+
+  .menu {
+    position: absolute;
+    right: 12px;
+    margin-top: 4px;
+    background: #1a1a28;
+    border: 1px solid #2a2a3c;
+    border-radius: 8px;
+    padding: 4px;
+    z-index: 100;
+    min-width: 220px;
+    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
+  }
+
+  .menu-item {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    width: 100%;
+    padding: 7px 10px;
+    border: none;
+    background: transparent;
+    color: #ccc;
+    font-size: 12px;
+    text-align: left;
+    cursor: pointer;
+    border-radius: 4px;
+    font-family: inherit;
+  }
+
+  .menu-item:hover {
+    background: #2a2a3c;
+    color: #fff;
+  }
+
+  .menu-item-danger {
+    color: #ff6b6b;
+  }
+
+  .menu-item-danger:hover {
+    background: #3a2222;
+  }
+
+  .menu-item:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: 1px;
+  }
+
+  .menu-sep {
+    height: 1px;
+    background: #2a2a3c;
+    margin: 4px 8px;
+  }
+</style>
@@ -1,43 +1,45 @@
-// Wails v2 API wrapper — single frontend access point to Go backend
+// Wails v2 API wrapper — uses generated bindings from wailsjs/go/main/App.js
+import * as App from '../wailsjs/go/main/App.js'

-function wailsCall(method, ...args) {
-  if (window.go && window.go.main && window.go.main.App) {
-    return window.go.main.App[method](...args)
-  }
-  return Promise.reject(new Error('Wails bindings not loaded'))
-}
+// Re-export all methods
+export const listSections = () => App.ListSections()
+export const listTodayView = () => App.ListTodayView()
+export const listNodesBySection = (section) => App.ListNodesBySection(section)
+export const listChildren = (parentID) => App.ListChildren(parentID)
+export const getNodeDetail = (id) => App.GetNodeDetail(id)
+export const createNode = (parentID, type, title, section) => App.CreateNode(parentID, type, title, section)
+export const deleteNode = (id) => App.DeleteNode(id)

-// Sections
-export const listSections = () => wailsCall('ListSections')
+export const listNotes = (nodeID) => App.ListNotes(nodeID)
+export const createNote = (parentID, title) => App.CreateNote(parentID, title)
+export const readNote = (noteID) => App.ReadNote(noteID)
+export const saveNote = (noteID, content) => App.SaveNote(noteID, content)

-// Nodes
-export const listNodesBySection = (section) => wailsCall('ListNodesBySection', section)
-export const listChildren = (parentID) => wailsCall('ListChildren', parentID)
-export const getNodeDetail = (id) => wailsCall('GetNodeDetail', id)
-export const createNode = (parentID, type, title, section) =>
-  wailsCall('CreateNode', parentID, type, title, section)
-export const deleteNode = (id) => wailsCall('DeleteNode', id)
+export const listFiles = (nodeID) => App.ListFiles(nodeID)
+export const listItems = (nodeID) => App.ListItems(nodeID)
+export const addPathCopy = (nodeID, sourcePath) => App.AddPathCopy(nodeID, sourcePath)
+export const addPathLink = (nodeID, sourcePath) => App.AddPathLink(nodeID, sourcePath)
+export const deleteFileOrFolder = (nodeID) => App.DeleteFileOrFolder(nodeID)
+export const previewImport = (sourcePath) => App.PreviewImport(sourcePath)
+export const pickFile = () => App.PickFile()
+export const pickFiles = () => App.PickFiles()
+export const pickDirectory = () => App.PickDirectory()
+export const openFile = (id) => App.OpenFile(id)
+export const readFileText = (id) => App.ReadFileText(id)
+export const getFileBase64 = (id) => App.GetFileBase64(id)
+export const createEmptyFile = (parentID, filename) => App.CreateEmptyFile(parentID, filename)
+export const duplicateNode = (nodeID) => App.DuplicateNode(nodeID)
+export const renameNode = (nodeID, newTitle) => App.RenameNode(nodeID, newTitle)
+export const moveNode = (nodeID, newParentID) => App.MoveNode(nodeID, newParentID)
+export const openFolder = (nodeID) => App.OpenFolder(nodeID)
+export const validateName = (name) => App.ValidateName(name)

-// Notes
-export const listNotes = (nodeID) => wailsCall('ListNotes', nodeID)
-export const createNote = (parentID, title) => wailsCall('CreateNote', parentID, title)
-export const readNote = (noteID) => wailsCall('ReadNote', noteID)
-export const saveNote = (noteID, content) => wailsCall('SaveNote', noteID, content)
+export const listActions = (nodeID) => App.ListActions(nodeID)
+export const runAction = (id) => App.RunAction(id)

-// Files
-export const listFiles = (nodeID) => wailsCall('ListFiles', nodeID)
+export const listWorklog = (nodeID) => App.ListWorklog(nodeID)
+export const createWorklog = (nodeID, summary, minutes) => App.CreateWorklog(nodeID, summary, minutes)

-// Actions
-export const listActions = (nodeID) => wailsCall('ListActions', nodeID)
-export const runAction = (id) => wailsCall('RunAction', id)
+export const search = (query) => App.Search(query)

-// Worklog
-export const listWorklog = (nodeID) => wailsCall('ListWorklog', nodeID)
-export const createWorklog = (nodeID, summary, minutes) =>
-  wailsCall('CreateWorklog', nodeID, summary, minutes)
-
-// Search
-export const search = (query) => wailsCall('Search', query)
-
-// System
-export const verstakVersion = () => wailsCall('VerstakVersion')
+export const verstakVersion = () => App.VerstakVersion()
@@ -0,0 +1,101 @@
+<script>
+  export let title = 'Подтверждение'
+  export let message = ''
+  export let confirmText = 'Удалить'
+  export let cancelText = 'Отмена'
+  export let danger = false
+
+  import { createEventDispatcher } from 'svelte'
+  const dispatch = createEventDispatcher()
+</script>
+
+<div class="overlay" on:click|self={() => dispatch('cancel')} role="dialog" aria-modal="true" aria-label={title}>
+  <div class="modal">
+    <h3>{title}</h3>
+    <p class="message">{message}</p>
+    <div class="actions">
+      <button class="btn {danger ? 'btn-danger' : 'btn-primary'}" on:click={() => dispatch('confirm')}>{confirmText}</button>
+      <button class="btn" on:click={() => dispatch('cancel')}>{cancelText}</button>
+    </div>
+  </div>
+</div>
+
+<style>
+  .overlay {
+    position: fixed;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.6);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 200;
+  }
+
+  .modal {
+    background: #1a1a28;
+    border: 1px solid #2a2a3c;
+    border-radius: 12px;
+    padding: 24px;
+    width: 360px;
+    max-width: 90vw;
+  }
+
+  h3 {
+    font-size: 18px;
+    margin-bottom: 12px;
+    color: #e4e4ef;
+  }
+
+  .message {
+    font-size: 14px;
+    color: #aaa;
+    margin-bottom: 20px;
+    line-height: 1.4;
+  }
+
+  .actions {
+    display: flex;
+    gap: 8px;
+    justify-content: flex-end;
+  }
+
+  .btn {
+    padding: 8px 16px;
+    border: 1px solid #2a2a3c;
+    background: #1a1a28;
+    color: #ccc;
+    border-radius: 6px;
+    cursor: pointer;
+    font-size: 13px;
+    font-family: inherit;
+  }
+
+  .btn:hover {
+    background: #222233;
+  }
+
+  .btn-primary {
+    background: #6366f1;
+    border-color: #6366f1;
+    color: #fff;
+  }
+
+  .btn-primary:hover {
+    background: #4f46e5;
+  }
+
+  .btn-danger {
+    background: #dc2626;
+    border-color: #dc2626;
+    color: #fff;
+  }
+
+  .btn-danger:hover {
+    background: #b91c1c;
+  }
+
+  .btn:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: 1px;
+  }
+</style>
@@ -0,0 +1,85 @@
+<script>
+  import { createEventDispatcher } from 'svelte'
+
+  export let isFolder = false
+  export let fileId = ''
+  export let nodeId = ''
+
+  const dispatch = createEventDispatcher()
+
+  function handleOpen() {
+    if (isFolder) {
+      dispatch('openFolder', nodeId)
+    } else {
+      dispatch('open', fileId)
+    }
+  }
+
+  function handleDelete() {
+    dispatch('delete', nodeId)
+  }
+</script>
+
+<div class="file-actions">
+  <button class="action-btn" on:click={handleOpen} title={isFolder ? 'Open folder' : 'Open file'} aria-label={isFolder ? 'Open folder' : 'Open file'}>
+    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      {#if isFolder}
+        <path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/>
+        <line x1="9" y1="14" x2="15" y2="14"/>
+      {:else}
+        <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/>
+        <polyline points="15 3 21 3 21 9"/>
+        <line x1="10" y1="14" x2="21" y2="3"/>
+      {/if}
+    </svg>
+  </button>
+  <button class="action-btn action-btn-danger" on:click={handleDelete} title="Delete" aria-label="Delete">
+    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+      <polyline points="3 6 5 6 21 6"/>
+      <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/>
+    </svg>
+  </button>
+</div>
+
+<style>
+  .file-actions {
+    display: flex;
+    gap: 2px;
+    align-items: center;
+    opacity: 0;
+    transition: opacity 0.15s ease;
+  }
+
+  :global(.file-row:hover) .file-actions {
+    opacity: 1;
+  }
+
+  .action-btn {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 28px;
+    height: 28px;
+    border: none;
+    border-radius: 4px;
+    background: transparent;
+    color: #666;
+    cursor: pointer;
+    transition: background 0.12s, color 0.12s;
+  }
+
+  .action-btn:hover {
+    background: #2a2a3c;
+    color: #ccc;
+  }
+
+  .action-btn-danger:hover {
+    background: #3a2222;
+    color: #ff6b6b;
+  }
+
+  .action-btn:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: 1px;
+  }
+</style>
@@ -0,0 +1,69 @@
+<script>
+  import { createEventDispatcher } from 'svelte'
+
+  export let crumbs = []
+
+  const dispatch = createEventDispatcher()
+
+  function navigateTo(index) {
+    dispatch('navigate', index)
+  }
+</script>
+
+<nav class="breadcrumbs">
+  {#each crumbs as crumb, i}
+    {#if i > 0}
+      <span class="sep">/</span>
+    {/if}
+    {#if i === crumbs.length - 1}
+      <span class="crumb crumb--current">{crumb.name}</span>
+    {:else}
+      <button class="crumb crumb--link" on:click={() => navigateTo(i)}>{crumb.name}</button>
+    {/if}
+  {/each}
+</nav>
+
+<style>
+  .breadcrumbs {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    padding: 8px 0;
+    font-size: 13px;
+    color: #999;
+  }
+
+  .sep {
+    color: #444;
+  }
+
+  .crumb {
+    font-size: 13px;
+  }
+
+  .crumb--current {
+    color: #ccc;
+  }
+
+  .crumb--link {
+    background: none;
+    border: none;
+    padding: 2px 4px;
+    color: #888;
+    cursor: pointer;
+    border-radius: 3px;
+    font-family: inherit;
+    font-size: 13px;
+    transition: color 0.12s, background 0.12s;
+  }
+
+  .crumb--link:hover {
+    color: #ccc;
+    background: #1e1e30;
+  }
+
+  .crumb--link:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: 1px;
+  }
+</style>
@@ -0,0 +1,63 @@
+<script>
+  export let kind = 'generic'
+  export let size = 20
+</script>
+
+<svg width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor"
+     stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg">
+  {#if kind === 'folder'}
+    <path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/>
+  {:else if kind === 'image'}
+    <rect x="3" y="3" width="18" height="18" rx="2" ry="2"/>
+    <circle cx="8.5" cy="8.5" r="1.5"/>
+    <polyline points="21 15 16 10 5 21"/>
+  {:else if kind === 'video'}
+    <rect x="2" y="4" width="20" height="16" rx="2"/>
+    <polyline points="10 9 16 12 10 15 10 9"/>
+  {:else if kind === 'audio'}
+    <path d="M9 18V5l12-2v13"/>
+    <circle cx="6" cy="18" r="3"/>
+    <circle cx="18" cy="16" r="3"/>
+  {:else if kind === 'pdf'}
+    <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+    <polyline points="14 2 14 8 20 8"/>
+    <line x1="8" y1="12" x2="16" y2="12"/>
+    <line x1="8" y1="16" x2="16" y2="16"/>
+    <line x1="8" y1="14" x2="12" y2="14"/>
+  {:else if kind === 'document'}
+    <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+    <polyline points="14 2 14 8 20 8"/>
+    <line x1="16" y1="13" x2="8" y2="13"/>
+    <line x1="16" y1="17" x2="8" y2="17"/>
+  {:else if kind === 'spreadsheet'}
+    <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+    <polyline points="14 2 14 8 20 8"/>
+    <line x1="8" y1="12" x2="16" y2="12"/>
+    <line x1="8" y1="16" x2="16" y2="16"/>
+    <line x1="8" y1="14" x2="12" y2="14"/>
+    <line x1="12" y1="12" x2="12" y2="18"/>
+  {:else if kind === 'presentation'}
+    <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+    <polyline points="14 2 14 8 20 8"/>
+    <line x1="9" y1="12" x2="15" y2="12"/>
+    <line x1="9" y1="15" x2="13" y2="15"/>
+    <line x1="12" y1="15" x2="12" y2="18"/>
+  {:else if kind === 'archive'}
+    <path d="M21 8v13a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8"/>
+    <polyline points="7 3 12 8 17 3"/>
+    <line x1="3" y1="8" x2="21" y2="8"/>
+    <rect x="10" y="12" width="4" height="4" rx="1"/>
+  {:else if kind === 'code'}
+    <polyline points="16 18 22 12 16 6"/>
+    <polyline points="8 6 2 12 8 18"/>
+  {:else if kind === 'text'}
+    <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+    <polyline points="14 2 14 8 20 8"/>
+    <line x1="16" y1="13" x2="8" y2="13"/>
+    <line x1="16" y1="17" x2="8" y2="17"/>
+    <polyline points="10 9 9 9 8 9"/>
+  {:else}
+    <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+    <polyline points="14 2 14 8 20 8"/>
+  {/if}
+</svg>
@@ -0,0 +1,262 @@
+<script>
+  import { createEventDispatcher, onMount, onDestroy } from 'svelte'
+  import FileIcon from './FileIcon.svelte'
+  import { formatFileSize, formatMimeType, getFileKind, isImageFile, isTextFile, isPdfFile, isMarkdownFile } from './fileUtils.js'
+
+  export let item
+  export let content = '' // base64 data URI or text content
+  export let loading = false
+  export let error = ''
+
+  const dispatch = createEventDispatcher()
+
+  const kind = getFileKind(item)
+  $: showImage = isImageFile(item) && content && content.startsWith('data:')
+  $: showText = isTextFile(item) || isMarkdownFile(item)
+  $: showPdf = isPdfFile(item)
+
+  function handleKeydown(e) {
+    if (e.key === 'Escape') {
+      dispatch('close')
+    }
+  }
+
+  function handleOpenExternal() {
+    dispatch('openExternal', item.fileId)
+  }
+
+  onMount(() => {
+    window.addEventListener('keydown', handleKeydown)
+  })
+
+  onDestroy(() => {
+    window.removeEventListener('keydown', handleKeydown)
+  })
+</script>
+
+<div class="overlay" on:click|self={() => dispatch('close')} role="dialog" aria-modal="true" aria-label={`Preview: ${item.name}`}>
+  <div class="modal">
+    <header class="preview-header">
+      <div class="preview-title">
+        <FileIcon {kind} size={18}/>
+        <span class="preview-name" title={item.name}>{item.name}</span>
+      </div>
+      <div class="preview-meta">{formatFileSize(item.size)} · {formatMimeType(item.mime)}</div>
+      <div class="preview-actions">
+        <button class="action-btn" on:click={handleOpenExternal} title="Открыть во внешней программе" aria-label="Открыть внешне">
+          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+            <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/>
+            <polyline points="15 3 21 3 21 9"/>
+            <line x1="10" y1="14" x2="21" y2="3"/>
+          </svg>
+        </button>
+        <button class="action-btn action-btn-close" on:click={() => dispatch('close')} title="Close" aria-label="Close preview">
+          <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round">
+            <line x1="18" y1="6" x2="6" y2="18"/>
+            <line x1="6" y1="6" x2="18" y2="18"/>
+          </svg>
+        </button>
+      </div>
+    </header>
+    <div class="preview-body">
+      {#if loading}
+        <div class="preview-status"><p>Загрузка...</p></div>
+      {:else if error}
+        <div class="preview-status">
+          <p>{error}</p>
+          <button class="btn btn-sm" on:click={handleOpenExternal}>Открыть во внешней программе</button>
+        </div>
+      {:else if showImage && content}
+        <div class="preview-image-container">
+          <img src={content} alt={item.name} class="preview-image"/>
+        </div>
+      {:else if showText && content}
+        <pre class="preview-text"><code>{content}</code></pre>
+      {:else if showPdf}
+        {#if content && content.startsWith('data:')}
+          <div class="preview-pdf-container">
+            <embed src={content} type="application/pdf" class="preview-pdf"/>
+          </div>
+        {:else}
+          <div class="preview-status">
+            <p>Предпросмотр PDF недоступен.</p>
+            <button class="btn btn-sm" on:click={handleOpenExternal}>Открыть во внешней программе</button>
+          </div>
+        {/if}
+      {:else}
+        <div class="preview-status">
+          <p>Предпросмотр недоступен для этого типа файлов.</p>
+          <button class="btn btn-sm" on:click={handleOpenExternal}>Открыть во внешней программе</button>
+        </div>
+      {/if}
+    </div>
+  </div>
+</div>
+
+<style>
+  .overlay {
+    position: fixed;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.65);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 1000;
+  }
+
+  .modal {
+    background: #14141f;
+    border: 1px solid #2a2a3c;
+    border-radius: 10px;
+    width: 90vw;
+    max-width: 900px;
+    height: 85vh;
+    max-height: 700px;
+    display: flex;
+    flex-direction: column;
+    overflow: hidden;
+  }
+
+  .preview-header {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    padding: 12px 16px;
+    border-bottom: 1px solid #2a2a3c;
+    flex-shrink: 0;
+  }
+
+  .preview-title {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    color: #ddd;
+    font-size: 14px;
+    min-width: 0;
+  }
+
+  .preview-name {
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .preview-meta {
+    font-size: 11px;
+    color: #666;
+    margin-left: auto;
+    white-space: nowrap;
+  }
+
+  .preview-actions {
+    display: flex;
+    gap: 4px;
+    flex-shrink: 0;
+    margin-left: 8px;
+  }
+
+  .action-btn {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 30px;
+    height: 30px;
+    border: none;
+    border-radius: 4px;
+    background: transparent;
+    color: #666;
+    cursor: pointer;
+    transition: background 0.12s, color 0.12s;
+  }
+
+  .action-btn:hover {
+    background: #2a2a3c;
+    color: #ccc;
+  }
+
+  .action-btn:focus-visible {
+    outline: 2px solid #5588ff;
+    outline-offset: 1px;
+  }
+
+  .action-btn-close {
+    color: #ff6b6b;
+  }
+
+  .action-btn-close:hover {
+    background: #3a2222;
+    color: #ff4444;
+  }
+
+  .preview-body {
+    flex: 1;
+    overflow: auto;
+    min-height: 0;
+  }
+
+  .preview-status {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 12px;
+    padding: 48px 24px;
+    color: #888;
+    font-size: 14px;
+  }
+
+  .preview-image-container {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 16px;
+    min-height: 200px;
+    background: #0e0e18;
+  }
+
+  .preview-image {
+    max-width: 100%;
+    max-height: calc(85vh - 100px);
+    object-fit: contain;
+    border-radius: 4px;
+  }
+
+  .preview-text {
+    margin: 0;
+    padding: 16px;
+    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
+    font-size: 12px;
+    line-height: 1.5;
+    color: #ccc;
+    white-space: pre-wrap;
+    word-wrap: break-word;
+    overflow: auto;
+  }
+
+  .preview-pdf-container {
+    width: 100%;
+    height: 100%;
+  }
+
+  .preview-pdf {
+    width: 100%;
+    height: 100%;
+    border: none;
+  }
+
+  .btn-sm {
+    padding: 6px 14px;
+    border: 1px solid #2a2a3c;
+    background: #1a1a28;
+    color: #ccc;
+    border-radius: 6px;
+    cursor: pointer;
+    font-size: 12px;
+    font-family: inherit;
+    transition: background 0.12s;
+  }
+
+  .btn-sm:hover {
+    background: #222233;
+  }
+</style>
@@ -0,0 +1,124 @@
+export function formatFileSize(bytes) {
+  if (bytes == null || bytes < 0) return '—'
+  if (bytes === 0) return '0 B'
+  const units = ['B', 'KB', 'MB', 'GB']
+  const i = Math.min(Math.floor(Math.log(bytes) / Math.log(1024)), units.length - 1)
+  const val = bytes / Math.pow(1024, i)
+  return (i === 0 ? val.toFixed(0) : val.toFixed(1)) + ' ' + units[i]
+}
+
+const mimeLabels = {
+  'image/jpeg': 'Изображение JPEG',
+  'image/png': 'Изображение PNG',
+  'image/gif': 'Изображение GIF',
+  'image/webp': 'Изображение WebP',
+  'image/svg+xml': 'Изображение SVG',
+  'image/bmp': 'Изображение BMP',
+  'image/tiff': 'Изображение TIFF',
+  'image/avif': 'Изображение AVIF',
+  'application/pdf': 'PDF документ',
+  'application/msword': 'Документ Word',
+  'application/vnd.openxmlformats-officedocument.wordprocessingml.document': 'Документ Word',
+  'application/vnd.ms-excel': 'Таблица Excel',
+  'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': 'Таблица Excel',
+  'application/vnd.ms-powerpoint': 'Презентация PowerPoint',
+  'application/vnd.openxmlformats-officedocument.presentationml.presentation': 'Презентация PowerPoint',
+  'application/zip': 'ZIP архив',
+  'application/gzip': 'GZIP архив',
+  'application/x-tar': 'TAR архив',
+  'application/x-7z-compressed': '7z архив',
+  'application/x-rar-compressed': 'RAR архив',
+  'text/plain': 'Текстовый файл',
+  'text/html': 'HTML файл',
+  'text/css': 'CSS файл',
+  'text/javascript': 'JavaScript файл',
+  'application/json': 'JSON файл',
+  'application/xml': 'XML файл',
+  'application/x-yaml': 'YAML файл',
+  'application/octet-stream': 'Бинарный файл',
+  'application/x-msdos-program': 'Исполняемый файл',
+  'inode/directory': 'Папка',
+}
+
+export function formatMimeType(mime) {
+  if (!mime) return 'Неизвестно'
+  return mimeLabels[mime] || mime
+}
+
+export function formatFileType(item) {
+  if (item.type === 'folder') return 'Папка'
+  const mime = (item.mime || '').toLowerCase()
+  if (mimeLabels[mime]) return mimeLabels[mime]
+  const name = (item.name || '').toLowerCase()
+  const ext = name.split('.').pop()
+  if (ext) return ext.toUpperCase()
+  return 'Файл'
+}
+
+export function getFileKind(item) {
+  if (item.type === 'folder') return 'folder'
+  const mime = (item.mime || '').toLowerCase()
+  if (mime.startsWith('image/')) return 'image'
+  if (mime.startsWith('video/')) return 'video'
+  if (mime.startsWith('audio/')) return 'audio'
+  if (mime.startsWith('text/')) return 'text'
+  if (mime.includes('pdf')) return 'pdf'
+  if (mime.includes('word') || mime.includes('document')) return 'document'
+  if (mime.includes('spreadsheet') || mime.includes('excel')) return 'spreadsheet'
+  if (mime.includes('presentation') || mime.includes('powerpoint')) return 'presentation'
+  if (mime.includes('zip') || mime.includes('tar') || mime.includes('gzip') || mime.includes('rar') || mime.includes('7z') || mime.includes('compress')) return 'archive'
+  if (mime.includes('json') || mime.includes('xml') || mime.includes('yaml') || mime.includes('javascript') || mime.includes('css') || mime.includes('html')) return 'code'
+  const name = (item.name || '').toLowerCase()
+  const ext = name.split('.').pop()
+  const codeExts = ['js','ts','jsx','tsx','vue','svelte','py','rs','go','c','cpp','h','hpp','java','kt','swift','rb','php','pl','sh','bash','zsh','fish','yml','yaml','json','xml','toml','ini','cfg','conf','md','markdown','css','scss','less','sass','sql','graphql','proto','gradle','cmake','makefile','dockerfile','env','gitignore']
+  if (codeExts.includes(ext)) return 'code'
+  return 'generic'
+}
+
+const imageMimes = ['image/jpeg','image/png','image/gif','image/webp','image/bmp','image/tiff','image/avif','image/svg+xml']
+const textMimes = ['text/plain','text/html','text/css','text/javascript','application/json','application/xml','application/x-yaml','text/x-shellscript']
+const codeNames = ['txt','log','conf','ini','yaml','yml','json','xml','csv','sh','py','js','ts','css','html','md','markdown','cfg']
+
+const imageExts = ['jpg','jpeg','png','gif','webp','bmp','tiff','tif','avif','svg']
+
+export function canPreviewFile(item) {
+  if (item.type === 'folder') return false
+  const mime = (item.mime || '').toLowerCase()
+  const name = (item.name || '').toLowerCase()
+  const ext = name.split('.').pop()
+  if (imageMimes.includes(mime) || imageExts.includes(ext)) return true
+  if (mime.includes('pdf')) return true
+  if (textMimes.includes(mime) || codeNames.includes(ext)) return true
+  return false
+}
+
+export function isImageFile(item) {
+  const mime = (item.mime || '').toLowerCase()
+  const name = (item.name || '').toLowerCase()
+  const ext = name.split('.').pop()
+  return imageMimes.includes(mime) || imageExts.includes(ext)
+}
+
+export function isTextFile(item) {
+  const mime = (item.mime || '').toLowerCase()
+  const name = (item.name || '').toLowerCase()
+  const ext = name.split('.').pop()
+  return textMimes.includes(mime) || (codeNames.includes(ext) && ext !== 'md' && ext !== 'markdown')
+}
+
+export function isPdfFile(item) {
+  return (item.mime || '').toLowerCase().includes('pdf')
+}
+
+export function isMarkdownFile(item) {
+  const name = (item.name || '').toLowerCase()
+  return name.endsWith('.md') || name.endsWith('.markdown')
+}
+
+export function needsBase64Preview(item) {
+  return isImageFile(item) || isPdfFile(item)
+}
+
+export function needsTextPreview(item) {
+  return isTextFile(item) || isMarkdownFile(item)
+}
@@ -0,0 +1,127 @@
+// @ts-check
+// Wails v2 generated bindings — auto-generated by wails build
+// Manual version for go build -tags gui
+
+export function ListSections() {
+    return window['go']['main']['App']['ListSections']();
+}
+
+export function ListTodayView() {
+    return window['go']['main']['App']['ListTodayView']();
+}
+
+export function ListNodesBySection(arg1) {
+    return window['go']['main']['App']['ListNodesBySection'](arg1);
+}
+
+export function ListChildren(arg1) {
+    return window['go']['main']['App']['ListChildren'](arg1);
+}
+
+export function GetNodeDetail(arg1) {
+    return window['go']['main']['App']['GetNodeDetail'](arg1);
+}
+
+export function CreateNode(arg1, arg2, arg3, arg4) {
+    return window['go']['main']['App']['CreateNode'](arg1, arg2, arg3, arg4);
+}
+
+export function DeleteNode(arg1) {
+    return window['go']['main']['App']['DeleteNode'](arg1);
+}
+
+export function ListNotes(arg1) {
+    return window['go']['main']['App']['ListNotes'](arg1);
+}
+
+export function CreateNote(arg1, arg2) {
+    return window['go']['main']['App']['CreateNote'](arg1, arg2);
+}
+
+export function ReadNote(arg1) {
+    return window['go']['main']['App']['ReadNote'](arg1);
+}
+
+export function SaveNote(arg1, arg2) {
+    return window['go']['main']['App']['SaveNote'](arg1, arg2);
+}
+
+export function ListFiles(arg1) {
+    return window['go']['main']['App']['ListFiles'](arg1);
+}
+
+export function AddPathCopy(arg1, arg2) {
+    return window['go']['main']['App']['AddPathCopy'](arg1, arg2);
+}
+
+export function AddPathLink(arg1, arg2) {
+    return window['go']['main']['App']['AddPathLink'](arg1, arg2);
+}
+
+export function DeleteFileOrFolder(arg1) {
+    return window['go']['main']['App']['DeleteFileOrFolder'](arg1);
+}
+
+export function PreviewImport(arg1) {
+    return window['go']['main']['App']['PreviewImport'](arg1);
+}
+
+export function ListActions(arg1) {
+    return window['go']['main']['App']['ListActions'](arg1);
+}
+
+export function RunAction(arg1) {
+    return window['go']['main']['App']['RunAction'](arg1);
+}
+
+export function ListWorklog(arg1) {
+    return window['go']['main']['App']['ListWorklog'](arg1);
+}
+
+export function CreateWorklog(arg1, arg2, arg3) {
+    return window['go']['main']['App']['CreateWorklog'](arg1, arg2, arg3);
+}
+
+export function Search(arg1) {
+    return window['go']['main']['App']['Search'](arg1);
+}
+
+export function PickFile() {
+    return window['go']['main']['App']['PickFile']();
+}
+
+export function PickFiles() {
+    return window['go']['main']['App']['PickFiles']();
+}
+
+export function PickDirectory() {
+    return window['go']['main']['App']['PickDirectory']();
+}
+
+export function OpenFile(arg1) {
+    return window['go']['main']['App']['OpenFile'](arg1);
+}
+
+export function OpenFolder(arg1) {
+    return window['go']['main']['App']['OpenFolder'](arg1);
+}
+
+export function VerstakVersion() {
+    return window['go']['main']['App']['VerstakVersion']();
+}
+
+export function ListActivityFeed(arg1, arg2) {
+    return window['go']['main']['App']['ListActivityFeed'](arg1, arg2);
+}
+
+export function ListActivityByNode(arg1, arg2, arg3) {
+    return window['go']['main']['App']['ListActivityByNode'](arg1, arg2, arg3);
+}
+
+export function CountActivityByNode(arg1) {
+    return window['go']['main']['App']['CountActivityByNode'](arg1);
+}
+
+export function CreateEmptyFile(arg1, arg2) {
+    return window['go']['main']['App']['CreateEmptyFile'](arg1, arg2);
+}
@@ -1,15 +1,22 @@
 import { defineConfig } from "vite";
 import { svelte } from "@sveltejs/vite-plugin-svelte";
+import { resolve } from "path";

 export default defineConfig({
+  plugins: [svelte()],
  server: {
    host: "127.0.0.1",
    port: 3001,
    strictPort: true,
  },
-  plugins: [svelte()],
  build: {
    outDir: "dist",
    emptyOutDir: true,
+    rollupOptions: {
+      input: {
+        main: resolve(__dirname, "index.html"),
      },
+    },
+  },
+  publicDir: "public",
 });
@@ -5,6 +5,7 @@ go 1.25.0
 require (
 	github.com/mattn/go-sqlite3 v1.14.44
 	github.com/wailsapp/wails/v2 v2.12.0
+	golang.org/x/crypto v0.33.0
 	gopkg.in/yaml.v3 v3.0.1
 )

@@ -33,7 +34,6 @@ require (
 	github.com/valyala/fasttemplate v1.2.2 // indirect
 	github.com/wailsapp/go-webview2 v1.0.22 // indirect
 	github.com/wailsapp/mimetype v1.4.1 // indirect
-	golang.org/x/crypto v0.33.0 // indirect
 	golang.org/x/net v0.35.0 // indirect
 	golang.org/x/sys v0.30.0 // indirect
 	golang.org/x/text v0.22.0 // indirect
@@ -0,0 +1,182 @@
+package activity
+
+import (
+	"database/sql"
+	"time"
+
+	"verstak/internal/core/storage"
+	"verstak/internal/core/util"
+)
+
+// Event types.
+const (
+	TypeNoteCreated    = "note_created"
+	TypeNoteUpdated    = "note_updated"
+	TypeFileAdded      = "file_added"
+	TypeFileDeleted    = "file_deleted"
+	TypeFileRenamed    = "file_renamed"
+	TypeFileCopied     = "file_copied"
+	TypeFileMoved      = "file_moved"
+	TypeFolderAdded    = "folder_added"
+	TypeFolderDeleted  = "folder_deleted"
+	TypeFolderRenamed  = "folder_renamed"
+	TypeNodeCreated    = "node_created"
+	TypeNodeUpdated    = "node_updated"
+	TypeActionCreated  = "action_created"
+	TypeActionDone     = "action_done"
+	TypeWorklogAdded   = "worklog_added"
+)
+
+// Target types.
+const (
+	TargetNote   = "note"
+	TargetFile   = "file"
+	TargetFolder = "folder"
+	TargetAction = "action"
+	TargetNode   = "node"
+	TargetWorklog = "worklog"
+)
+
+// Event represents an activity event.
+type Event struct {
+	ID          string `json:"id"`
+	NodeID      string `json:"node_id"`
+	EventType   string `json:"event_type"`
+	TargetType  string `json:"target_type,omitempty"`
+	TargetID    string `json:"target_id,omitempty"`
+	TargetPath  string `json:"target_path,omitempty"`
+	Title       string `json:"title"`
+	DetailsJSON string `json:"details_json,omitempty"`
+	CreatedAt   string `json:"created_at"`
+}
+
+// Service records and queries activity events.
+type Service struct {
+	db *storage.DB
+}
+
+func NewService(db *storage.DB) *Service {
+	return &Service{db: db}
+}
+
+// Record inserts a new activity event.
+func (s *Service) Record(nodeID, targetType, targetID, targetPath, eventType, title, detailsJSON string) error {
+	id := util.UUID7()
+	now := time.Now().UTC().Format(time.RFC3339)
+	_, err := s.db.Exec(
+		`INSERT INTO activity_events(id,node_id,event_type,target_type,target_id,target_path,title,metadata,created_at)
+		 VALUES(?,?,?,?,?,?,?,?,?)`,
+		id, nodeID, eventType, targetType, targetID, targetPath, title, detailsJSON, now)
+	return err
+}
+
+// TodayBoundaries returns the current local day in UTC as RFC3339 strings.
+func TodayBoundaries() (string, string) {
+	now := time.Now()
+	y, m, d := now.Date()
+	start := time.Date(y, m, d, 0, 0, 0, 0, now.Location())
+	end := start.Add(24 * time.Hour)
+	return start.UTC().Format(time.RFC3339), end.UTC().Format(time.RFC3339)
+}
+
+// scanEvent scans a single event row.
+func scanEvent(rows *sql.Rows) (Event, error) {
+	var e Event
+	err := rows.Scan(&e.ID, &e.NodeID, &e.EventType,
+		&e.TargetType, &e.TargetID, &e.TargetPath,
+		&e.Title, &e.DetailsJSON, &e.CreatedAt)
+	return e, err
+}
+
+// ListTodayEvents returns all activity events from today.
+func (s *Service) ListTodayEvents() ([]Event, error) {
+	start, end := TodayBoundaries()
+	rows, err := s.db.Query(
+		`SELECT id,node_id,event_type,COALESCE(target_type,''),COALESCE(target_id,''),COALESCE(target_path,''),
+		       title,COALESCE(metadata,'{}'),created_at
+		 FROM activity_events
+		 WHERE created_at >= ? AND created_at < ?
+		 ORDER BY created_at DESC`, start, end)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var events []Event
+	for rows.Next() {
+		e, err := scanEvent(rows)
+		if err != nil {
+			return nil, err
+		}
+		events = append(events, e)
+	}
+	return events, rows.Err()
+}
+
+// ListTodayEventsByParent returns today's events grouped by their NodeID.
+func (s *Service) ListTodayEventsByParent() (map[string][]Event, error) {
+	events, err := s.ListTodayEvents()
+	if err != nil {
+		return nil, err
+	}
+	grouped := make(map[string][]Event, 8)
+	for _, e := range events {
+		pid := e.NodeID
+		grouped[pid] = append(grouped[pid], e)
+	}
+	return grouped, nil
+}
+
+// ListRecent returns a paginated global activity feed.
+func (s *Service) ListRecent(limit, offset int) ([]Event, error) {
+	rows, err := s.db.Query(
+		`SELECT id,node_id,event_type,COALESCE(target_type,''),COALESCE(target_id,''),COALESCE(target_path,''),
+		       title,COALESCE(metadata,'{}'),created_at
+		 FROM activity_events
+		 ORDER BY created_at DESC
+		 LIMIT ? OFFSET ?`, limit, offset)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var events []Event
+	for rows.Next() {
+		e, err := scanEvent(rows)
+		if err != nil {
+			return nil, err
+		}
+		events = append(events, e)
+	}
+	return events, rows.Err()
+}
+
+// ListByNode returns paginated events for a specific node.
+func (s *Service) ListByNode(nodeID string, limit, offset int) ([]Event, error) {
+	rows, err := s.db.Query(
+		`SELECT id,node_id,event_type,COALESCE(target_type,''),COALESCE(target_id,''),COALESCE(target_path,''),
+		       title,COALESCE(metadata,'{}'),created_at
+		 FROM activity_events
+		 WHERE node_id = ?
+		 ORDER BY created_at DESC
+		 LIMIT ? OFFSET ?`, nodeID, limit, offset)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var events []Event
+	for rows.Next() {
+		e, err := scanEvent(rows)
+		if err != nil {
+			return nil, err
+		}
+		events = append(events, e)
+	}
+	return events, rows.Err()
+}
+
+// CountByNode returns the total number of events for a node.
+func (s *Service) CountByNode(nodeID string) (int, error) {
+	var count int
+	err := s.db.QueryRow(
+		`SELECT COUNT(*) FROM activity_events WHERE node_id = ?`, nodeID).Scan(&count)
+	return count, err
+}
@@ -27,6 +27,7 @@ type SyncConfig struct {
 	APIKey       string `yaml:"api_key"`
 	DeviceID     string `yaml:"device_id"`
 	AutoSync     bool   `yaml:"auto_sync"`
+	SyncInterval int    `yaml:"sync_interval"`
 }

 type BrowserConfig struct {
@@ -66,3 +67,41 @@ func Save(vaultRoot string, cfg *Config) error {
 func MetaDir(vaultRoot string) string {
 	return filepath.Join(vaultRoot, ".verstak")
 }
+
+// DeviceTokenPath returns the path to the device_token file.
+func DeviceTokenPath(vaultRoot string) string {
+	return filepath.Join(vaultRoot, ".verstak", "device_token.json")
+}
+
+// SaveDeviceToken writes the device token to a separate file with 0600 perms.
+func SaveDeviceToken(vaultRoot, token string) error {
+	path := DeviceTokenPath(vaultRoot)
+	dir := filepath.Dir(path)
+	if err := os.MkdirAll(dir, 0o750); err != nil {
+		return err
+	}
+	data := fmt.Sprintf(`{"device_token":%q}`, token)
+	return os.WriteFile(path, []byte(data), 0o600)
+}
+
+// LoadDeviceToken reads the device token from the separate file.
+func LoadDeviceToken(vaultRoot string) string {
+	path := DeviceTokenPath(vaultRoot)
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return ""
+	}
+	var v struct {
+		DeviceToken string `yaml:"device_token"`
+	}
+	if err := yaml.Unmarshal(data, &v); err != nil {
+		return ""
+	}
+	return v.DeviceToken
+}
+
+// RemoveDeviceToken deletes the device token file.
+func RemoveDeviceToken(vaultRoot string) error {
+	path := DeviceTokenPath(vaultRoot)
+	return os.Remove(path)
+}
@@ -3,6 +3,7 @@ package files
 import (
 	"crypto/sha256"
 	"database/sql"
+	"encoding/base64"
 	"fmt"
 	"io"
 	"os"
@@ -12,6 +13,7 @@ import (
 	"strings"
 	"time"

+	"verstak/internal/core/nodes"
 	"verstak/internal/core/storage"
 	"verstak/internal/core/util"
 )
@@ -32,15 +34,25 @@ type Record struct {
 	Missing     bool       `json:"missing"`
 }

+// ImportSummary describes a scanned directory before import.
+type ImportSummary struct {
+	Files        int    `json:"files"`
+	Folders      int    `json:"folders"`
+	TotalBytes   int64  `json:"totalBytes"`
+	IsDangerous  bool   `json:"isDangerous"`
+	DangerReason string `json:"dangerReason,omitempty"`
+}
+
 // Service provides file operations inside a vault.
 type Service struct {
 	db        *storage.DB
 	vaultRoot string
+	nodes     *nodes.Repository
 }

 // NewService creates a file service bound to a vault.
-func NewService(db *storage.DB, vaultRoot string) *Service {
-	return &Service{db: db, vaultRoot: vaultRoot}
+func NewService(db *storage.DB, vaultRoot string, nodeRepo *nodes.Repository) *Service {
+	return &Service{db: db, vaultRoot: vaultRoot, nodes: nodeRepo}
 }

 // DB returns the underlying storage.
@@ -48,6 +60,59 @@ func (s *Service) DB() *storage.DB {
 	return s.db
 }

+// --- security helpers ---
+
+// ValidateName is an exported wrapper for validateName.
+func ValidateName(name string) error {
+	return validateName(name)
+}
+
+// validateName rejects filenames with path separators, relative components,
+// and other dangerous patterns.
+func validateName(name string) error {
+	if name == "" {
+		return fmt.Errorf("name is required")
+	}
+	if strings.Contains(name, "/") || strings.Contains(name, "\\") {
+		return fmt.Errorf("name must not contain path separators")
+	}
+	if strings.Contains(name, "..") {
+		return fmt.Errorf("name must not contain '..'")
+	}
+	if strings.Contains(name, "\x00") {
+		return fmt.Errorf("name must not contain null bytes")
+	}
+	if len(name) > 255 {
+		return fmt.Errorf("name too long (max 255)")
+	}
+	return nil
+}
+
+// vaultPath resolves a relative vault path and checks it stays within jail.
+func (s *Service) vaultPath(rel string) (string, error) {
+	abs := filepath.Join(s.vaultRoot, rel)
+	cleaned := filepath.Clean(abs)
+	if !strings.HasPrefix(cleaned, filepath.Clean(s.vaultRoot)) {
+		return "", fmt.Errorf("path escapes vault root")
+	}
+	return cleaned, nil
+}
+
+// absPathSafe resolves an absolute path and checks jail if it's under vault.
+// For "external" mode records the path stored may be an absolute external path.
+// This function only checks path safety — it does not enforce that external
+// files must be inside the vault.
+func (s *Service) absPathSafe(rec *Record) (string, error) {
+	if rec.StorageMode == "vault" {
+		return s.vaultPath(rec.Path)
+	}
+	abs, err := filepath.Abs(rec.Path)
+	if err != nil {
+		return "", fmt.Errorf("abs: %w", err)
+	}
+	return filepath.Clean(abs), nil
+}
+
 // --- public operations ---

 // AddExternal registers an external file (absolute path) without copying.
@@ -72,6 +137,9 @@ func (s *Service) CopyIntoVault(nodeID, absPath, nodeSlug string) (*Record, erro
 	}

 	destDir := filepath.Join(s.vaultRoot, "spaces", nodeSlug)
+	if _, err := s.vaultPath(filepath.Join("spaces", nodeSlug)); err != nil {
+		return nil, fmt.Errorf("path safety: %w", err)
+	}
 	if err := os.MkdirAll(destDir, 0o750); err != nil {
 		return nil, fmt.Errorf("mkdir: %w", err)
 	}
@@ -93,6 +161,9 @@ func (s *Service) CopyIntoVault(nodeID, absPath, nodeSlug string) (*Record, erro
 	}

 	relPath, _ := filepath.Rel(s.vaultRoot, dest)
+	if _, err := s.vaultPath(relPath); err != nil {
+		return nil, fmt.Errorf("path safety: %w", err)
+	}
 	return s.insertRecord(nodeID, filename, relPath, "vault", info.Size(), hash)
 }

@@ -137,12 +208,19 @@ func (s *Service) DeleteToTrash(id string) error {
 		return err
 	}
 	if rec.StorageMode == "vault" {
-		src := filepath.Join(s.vaultRoot, rec.Path)
+		src, err := s.vaultPath(rec.Path)
+		if err != nil {
+			return err
+		}
 		trashDir := filepath.Join(s.vaultRoot, ".verstak", "trash")
 		if err := os.MkdirAll(trashDir, 0o750); err != nil {
 			return err
 		}
 		dest := filepath.Join(trashDir, rec.ID+"_"+rec.Filename)
+		// verify trash is inside vault
+		if _, err := s.vaultPath(filepath.Join(".verstak", "trash", rec.ID+"_"+rec.Filename)); err != nil {
+			return err
+		}
 		if err := os.Rename(src, dest); err != nil {
 			return fmt.Errorf("move to trash: %w", err)
 		}
@@ -157,15 +235,325 @@ func (s *Service) Open(id string) error {
 	if err != nil {
 		return err
 	}
-	var abs string
-	if rec.StorageMode == "vault" {
-		abs = filepath.Join(s.vaultRoot, rec.Path)
-	} else {
-		abs = rec.Path
+	abs, err := s.absPathSafe(rec)
+	if err != nil {
+		return err
 	}
 	return openWithSystem(abs)
 }

+// maxPreviewSize is the maximum file size (5 MB) for inline preview.
+const maxPreviewSize = 5 * 1024 * 1024
+
+// ReadText reads a file's content as text, up to maxPreviewSize.
+func (s *Service) ReadText(id string) (string, error) {
+	rec, err := s.Get(id)
+	if err != nil {
+		return "", err
+	}
+	if rec.Size > maxPreviewSize {
+		return "", fmt.Errorf("file too large for preview (%d bytes)", rec.Size)
+	}
+	abs, err := s.absPathSafe(rec)
+	if err != nil {
+		return "", err
+	}
+	b, err := os.ReadFile(abs)
+	if err != nil {
+		return "", fmt.Errorf("read: %w", err)
+	}
+	return string(b), nil
+}
+
+// ReadBase64 reads a file and returns a data URI (base64-encoded).
+func (s *Service) ReadBase64(id string) (string, error) {
+	rec, err := s.Get(id)
+	if err != nil {
+		return "", err
+	}
+	if rec.Size > maxPreviewSize {
+		return "", fmt.Errorf("file too large for preview (%d bytes)", rec.Size)
+	}
+	abs, err := s.absPathSafe(rec)
+	if err != nil {
+		return "", err
+	}
+	b, err := os.ReadFile(abs)
+	if err != nil {
+		return "", fmt.Errorf("read: %w", err)
+	}
+	mime := rec.MIME
+	if mime == "" {
+		mime = "application/octet-stream"
+	}
+	return fmt.Sprintf("data:%s;base64,%s", mime, base64.StdEncoding.EncodeToString(b)), nil
+}
+
+// CreateEmptyFile creates a file node and an empty vault file.
+func (s *Service) CreateEmptyFile(parentID, filename string) (*nodes.Node, error) {
+	if err := validateName(filename); err != nil {
+		return nil, fmt.Errorf("invalid filename: %w", err)
+	}
+	filename = s.uniqueTitle(parentID, filename)
+	node, err := s.nodes.Create(parentID, nodes.TypeFile, filename, "")
+	if err != nil {
+		return nil, err
+	}
+	dir := filepath.Join(s.vaultRoot, "spaces", node.Slug)
+	if err := os.MkdirAll(dir, 0o750); err != nil {
+		return nil, fmt.Errorf("mkdir: %w", err)
+	}
+	dest := filepath.Join(dir, filename)
+	f, err := os.Create(dest)
+	if err != nil {
+		return nil, fmt.Errorf("create file: %w", err)
+	}
+	f.Close()
+	relPath, _ := filepath.Rel(s.vaultRoot, dest)
+	// Verify dest is inside vault
+	if _, err := s.vaultPath(relPath); err != nil {
+		return nil, fmt.Errorf("path safety: %w", err)
+	}
+	_, err = s.insertRecord(node.ID, filename, relPath, "vault", 0, "")
+	return node, err
+}
+
+// Duplicate creates a copy of a node and its file record under the same parent.
+func (s *Service) Duplicate(nodeID string) (*nodes.Node, error) {
+	original, err := s.nodes.GetActive(nodeID)
+	if err != nil {
+		return nil, err
+	}
+	parentID := ""
+	if original.ParentID != nil {
+		parentID = *original.ParentID
+	}
+	newName := s.copyTitle(parentID, original.Title)
+	node, err := s.nodes.Create(parentID, original.Type, newName, original.Section)
+	if err != nil {
+		return nil, err
+	}
+	if original.Type == nodes.TypeFile {
+		records, _ := s.ListByNode(original.ID)
+		if len(records) > 0 {
+			src := &records[0]
+			if src.StorageMode == "vault" {
+				srcPath, err := s.vaultPath(src.Path)
+				if err != nil {
+					return nil, err
+				}
+				dir := filepath.Join(s.vaultRoot, "spaces", node.Slug)
+				os.MkdirAll(dir, 0o750)
+				dst := filepath.Join(dir, newName)
+				hash, err := copyAndHash(srcPath, dst)
+				if err != nil {
+					return nil, fmt.Errorf("copy file: %w", err)
+				}
+				relPath, _ := filepath.Rel(s.vaultRoot, dst)
+				if _, err := s.vaultPath(relPath); err != nil {
+					return nil, fmt.Errorf("path safety: %w", err)
+				}
+				_, err = s.insertRecord(node.ID, newName, relPath, "vault", src.Size, hash)
+				if err != nil {
+					return nil, err
+				}
+			} else {
+				// External file: create a new record pointing to the same absolute path.
+				_, err = s.insertRecord(node.ID, newName, src.Path, "external", src.Size, src.SHA256)
+				if err != nil {
+					return nil, err
+				}
+			}
+		}
+	}
+	return node, nil
+}
+
+// AddPathCopy copies sourcePath (file or directory) into the vault under nodeID.
+func (s *Service) AddPathCopy(nodeID, sourcePath string) ([]nodes.Node, error) {
+	return s.importPath(nodeID, sourcePath, true)
+}
+
+// AddPathLink links sourcePath (file or directory) without copying into vault.
+func (s *Service) AddPathLink(nodeID, sourcePath string) ([]nodes.Node, error) {
+	return s.importPath(nodeID, sourcePath, false)
+}
+
+// PreviewImport scans sourcePath and returns a summary without importing.
+func (s *Service) PreviewImport(sourcePath string) (*ImportSummary, error) {
+	info, err := os.Stat(sourcePath)
+	if err != nil {
+		return nil, fmt.Errorf("stat: %w", err)
+	}
+	if !info.IsDir() {
+		return &ImportSummary{Files: 1, TotalBytes: info.Size()}, nil
+	}
+
+	var sum ImportSummary
+	err = filepath.Walk(sourcePath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return filepath.SkipDir
+		}
+		if fi.IsDir() {
+			sum.Folders++
+			name := strings.ToLower(fi.Name())
+			if name == ".git" || name == "node_modules" || name == ".cache" {
+				sum.IsDangerous = true
+				sum.DangerReason = fmt.Sprintf("содержит %s", fi.Name())
+			}
+			return nil
+		}
+		sum.Files++
+		sum.TotalBytes += fi.Size()
+		return nil
+	})
+	if sum.Files > 1000 && !sum.IsDangerous {
+		sum.IsDangerous = true
+		sum.DangerReason = "более 1000 файлов"
+	}
+	if sum.TotalBytes > 1<<30 && !sum.IsDangerous {
+		sum.IsDangerous = true
+		sum.DangerReason = "более 1 GB"
+	}
+	return &sum, err
+}
+
+// DeleteNodeAndChildren soft-deletes a node and all descendants,
+// moving vault files to trash.
+func (s *Service) DeleteNodeAndChildren(nodeID string) error {
+	children, _ := s.nodes.ListChildren(nodeID, false)
+	for i := range children {
+		if err := s.DeleteNodeAndChildren(children[i].ID); err != nil {
+			return err
+		}
+	}
+	_ = s.deleteFileRecords(nodeID)
+	return s.nodes.SoftDelete(nodeID)
+}
+
+func (s *Service) deleteFileRecords(nodeID string) error {
+	records, err := s.ListByNode(nodeID)
+	if err != nil {
+		return err
+	}
+	for _, r := range records {
+		_ = s.DeleteToTrash(r.ID)
+	}
+	return nil
+}
+
+func (s *Service) importPath(parentID, sourcePath string, copyMode bool) ([]nodes.Node, error) {
+	info, err := os.Stat(sourcePath)
+	if err != nil {
+		return nil, fmt.Errorf("stat: %w", err)
+	}
+	if !info.IsDir() {
+		title := s.uniqueTitle(parentID, filepath.Base(sourcePath))
+		node, err := s.nodes.Create(parentID, nodes.TypeFile, title, "")
+		if err != nil {
+			return nil, err
+		}
+		if copyMode {
+			_, err = s.CopyIntoVault(node.ID, sourcePath, node.Slug)
+		} else {
+			_, err = s.AddExternal(node.ID, sourcePath)
+		}
+		if err != nil {
+			return nil, err
+		}
+		return []nodes.Node{*node}, nil
+	}
+	return s.importDir(parentID, sourcePath, info.Name(), copyMode)
+}
+
+func (s *Service) importDir(parentID, sourcePath, dirName string, copyMode bool) ([]nodes.Node, error) {
+	dirName = s.uniqueTitle(parentID, dirName)
+	folderNode, err := s.nodes.Create(parentID, nodes.TypeFolder, dirName, "")
+	if err != nil {
+		return nil, err
+	}
+
+	entries, err := os.ReadDir(sourcePath)
+	if err != nil {
+		return nil, err
+	}
+
+	var all []nodes.Node
+	all = append(all, *folderNode)
+
+	for _, entry := range entries {
+		childPath := filepath.Join(sourcePath, entry.Name())
+		if entry.IsDir() {
+			children, err := s.importDir(folderNode.ID, childPath, entry.Name(), copyMode)
+			if err != nil {
+				return nil, err
+			}
+			all = append(all, children...)
+		} else {
+			childNode, err := s.nodes.Create(folderNode.ID, nodes.TypeFile, entry.Name(), "")
+			if err != nil {
+				return nil, err
+			}
+			if copyMode {
+				_, err = s.CopyIntoVault(childNode.ID, childPath, childNode.Slug)
+			} else {
+				_, err = s.AddExternal(childNode.ID, childPath)
+			}
+			if err != nil {
+				return nil, err
+			}
+			all = append(all, *childNode)
+		}
+	}
+	return all, nil
+}
+
+func (s *Service) uniqueTitle(parentID, desired string) string {
+	children, _ := s.nodes.ListChildren(parentID, false)
+	used := make(map[string]bool, len(children))
+	for i := range children {
+		used[children[i].Title] = true
+	}
+	if !used[desired] {
+		return desired
+	}
+	for n := 2; ; n++ {
+		c := fmt.Sprintf("%s (%d)", desired, n)
+		if !used[c] {
+			return c
+		}
+	}
+}
+
+// copyTitle generates a unique "Name (copy).ext" style name for duplicates.
+// For files with extensions: "photo.jpg" → "photo (copy).jpg", "photo (copy 2).jpg"
+// For folders: "Docs" → "Docs (copy)", "Docs (copy 2)"
+func (s *Service) copyTitle(parentID, desired string) string {
+	children, _ := s.nodes.ListChildren(parentID, false)
+	used := make(map[string]bool, len(children))
+	for i := range children {
+		used[children[i].Title] = true
+	}
+
+	ext := filepath.Ext(desired)
+	base := strings.TrimSuffix(desired, ext)
+	copyName := base + " (copy)" + ext
+	if !used[copyName] {
+		return copyName
+	}
+	for n := 2; ; n++ {
+		candidate := fmt.Sprintf("%s (copy %d)%s", base, n, ext)
+		if !used[candidate] {
+			return candidate
+		}
+	}
+}
+
+// UniqueTitleCopy returns a copy-style unique name for use in conflict resolution.
+func (s *Service) UniqueTitleCopy(parentID, desired string) string {
+	return s.copyTitle(parentID, desired)
+}
+
 // --- implementation details ---

 func (s *Service) insertRecord(nodeID, filename, path, mode string, size int64, sha string) (*Record, error) {
@@ -5,6 +5,7 @@ import (
 	"path/filepath"
 	"testing"

+	"verstak/internal/core/nodes"
 	"verstak/internal/core/storage"
 )

@@ -23,7 +24,7 @@ func TestAddExternal(t *testing.T) {
 	db := openTestDB(t)
 	// Run migration 002 manually since storage.Open already applied it.
 	// We can verify the table exists by inserting.
-	filesSvc := NewService(db, t.TempDir())
+	filesSvc := NewService(db, t.TempDir(), nodes.NewRepository(db))

 	// Create a real temp file to register.
 	tmpDir := t.TempDir()
@@ -62,7 +63,7 @@ func TestAddExternal(t *testing.T) {
 func TestCopyIntoVault(t *testing.T) {
 	db := openTestDB(t)
 	vaultRoot := t.TempDir()
-	svc := NewService(db, vaultRoot)
+	svc := NewService(db, vaultRoot, nodes.NewRepository(db))

 	// Source file.
 	srcDir := t.TempDir()
@@ -88,7 +89,7 @@ func TestCopyIntoVault(t *testing.T) {

 func TestListByNode(t *testing.T) {
 	db := openTestDB(t)
-	svc := NewService(db, t.TempDir())
+	svc := NewService(db, t.TempDir(), nodes.NewRepository(db))

 	os.WriteFile(filepath.Join(t.TempDir(), "a.txt"), []byte("a"), 0o640)
 	f1 := filepath.Join(t.TempDir(), "a1.txt")
@@ -111,7 +112,7 @@ func TestListByNode(t *testing.T) {
 func TestDeleteToTrash(t *testing.T) {
 	db := openTestDB(t)
 	vaultRoot := t.TempDir()
-	svc := NewService(db, vaultRoot)
+	svc := NewService(db, vaultRoot, nodes.NewRepository(db))

 	src := filepath.Join(t.TempDir(), "important.pdf")
 	os.WriteFile(src, []byte("important data"), 0o640)
@@ -140,6 +141,170 @@ func TestDeleteToTrash(t *testing.T) {
 	}
 }

+func TestAddPathCopySingleFile(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test Case", "")
+	src := filepath.Join(t.TempDir(), "doc.pdf")
+	os.WriteFile(src, []byte("file content"), 0o640)
+
+	nodes, err := svc.AddPathCopy(parent.ID, src)
+	if err != nil {
+		t.Fatalf("AddPathCopy: %v", err)
+	}
+	if len(nodes) != 1 {
+		t.Fatalf("got %d nodes, want 1", len(nodes))
+	}
+	if nodes[0].Type != "file" {
+		t.Errorf("type = %q", nodes[0].Type)
+	}
+	// Source intact.
+	if _, err := os.Stat(src); err != nil {
+		t.Error("source should remain intact")
+	}
+	// File record created.
+	records, _ := svc.ListByNode(nodes[0].ID)
+	if len(records) != 1 {
+		t.Errorf("file records = %d", len(records))
+	}
+}
+
+func TestAddPathLinkSingleFile(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test Case", "")
+	src := filepath.Join(t.TempDir(), "linked.pdf")
+	os.WriteFile(src, []byte("linked"), 0o640)
+
+	nodes, err := svc.AddPathLink(parent.ID, src)
+	if err != nil {
+		t.Fatalf("AddPathLink: %v", err)
+	}
+	if len(nodes) != 1 {
+		t.Fatalf("got %d nodes, want 1", len(nodes))
+	}
+	// File record should have external storage mode.
+	records, _ := svc.ListByNode(nodes[0].ID)
+	if len(records) != 1 {
+		t.Fatalf("file records = %d", len(records))
+	}
+	if records[0].StorageMode != "external" {
+		t.Errorf("storage mode = %q, want external", records[0].StorageMode)
+	}
+}
+
+func TestAddPathCopyDirectory(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test Case", "")
+	srcDir := t.TempDir()
+	os.MkdirAll(filepath.Join(srcDir, "sub"), 0o750)
+	os.WriteFile(filepath.Join(srcDir, "a.txt"), []byte("a"), 0o640)
+	os.WriteFile(filepath.Join(srcDir, "sub", "b.txt"), []byte("bb"), 0o640)
+
+	nodes, err := svc.AddPathCopy(parent.ID, srcDir)
+	if err != nil {
+		t.Fatalf("AddPathCopy dir: %v", err)
+	}
+	// Should create: folder node + file node + sub folder node + file node in sub.
+	if len(nodes) < 3 {
+		t.Errorf("expected 3+ nodes, got %d", len(nodes))
+	}
+	// Verify structure: root folder + children.
+	var folders, files int
+	for i := range nodes {
+		if nodes[i].Type == "folder" {
+			folders++
+		} else {
+			files++
+		}
+	}
+	if folders < 1 {
+		t.Error("expected at least 1 folder")
+	}
+	if files < 1 {
+		t.Error("expected at least 1 file")
+	}
+}
+
+func TestDeleteNodeAndChildren(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "To Delete", "")
+	child, _ := nodeRepo.Create(parent.ID, "file", "child.txt", "")
+	// Add file record to child.
+	src := filepath.Join(t.TempDir(), "child.txt")
+	os.WriteFile(src, []byte("data"), 0o640)
+	svc.CopyIntoVault(child.ID, src, child.Slug)
+
+	if err := svc.DeleteNodeAndChildren(parent.ID); err != nil {
+		t.Fatalf("DeleteNodeAndChildren: %v", err)
+	}
+	// Parent should be soft-deleted.
+	if _, err := nodeRepo.GetActive(parent.ID); err == nil {
+		t.Error("parent should be deleted")
+	}
+	// Child should be soft-deleted.
+	if _, err := nodeRepo.GetActive(child.ID); err == nil {
+		t.Error("child should be deleted")
+	}
+}
+
+func TestNameConflict(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	nodeRepo := nodes.NewRepository(db)
+	svc := NewService(db, vaultRoot, nodeRepo)
+
+	parent, _ := nodeRepo.Create("", "case", "Test", "")
+	src := filepath.Join(t.TempDir(), "conflict.pdf")
+	os.WriteFile(src, []byte("data"), 0o640)
+
+	// Import twice with same filename.
+	n1, _ := svc.AddPathCopy(parent.ID, src)
+	n2, _ := svc.AddPathCopy(parent.ID, src)
+	if n1[0].Title == n2[0].Title {
+		t.Error("expected unique name on conflict")
+	}
+	if n2[0].Title == "conflict.pdf" {
+		t.Errorf("title unchanged = %q", n2[0].Title)
+	}
+}
+
+func TestPreviewImportDir(t *testing.T) {
+	db := openTestDB(t)
+	vaultRoot := t.TempDir()
+	svc := NewService(db, vaultRoot, nodes.NewRepository(db))
+
+	srcDir := t.TempDir()
+	os.MkdirAll(filepath.Join(srcDir, "sub"), 0o750)
+	os.WriteFile(filepath.Join(srcDir, "f1.txt"), []byte("hello"), 0o640)
+	os.WriteFile(filepath.Join(srcDir, "f2.txt"), []byte("world"), 0o640)
+
+	sum, err := svc.PreviewImport(srcDir)
+	if err != nil {
+		t.Fatalf("PreviewImport: %v", err)
+	}
+	if sum.Files != 2 {
+		t.Errorf("files = %d, want 2", sum.Files)
+	}
+	if sum.Folders != 2 { // root + sub
+		t.Errorf("folders = %d, want 2", sum.Folders)
+	}
+}
+
 func TestGuessMIME(t *testing.T) {
 	cases := map[string]string{
 		"a.md":    "text/plain",
@@ -50,16 +50,10 @@ func now() string {
 	return time.Now().UTC().Format(time.RFC3339)
 }

-// --- CRUD ---
-
-// Valid sections for root-level nodes.
-var validSections = map[string]struct{}{
-	"clients": {}, "projects": {}, "recipes": {}, "documents": {}, "archive": {},
-}
-
 // Create inserts a root or child node.
 // parentID may be empty for root-level nodes.
-// For root nodes, section determines sidebar placement (may be empty → inbox).
+// For root nodes, section determines sidebar placement (may be empty = inbox).
+// section must be a valid section (clients, projects, etc.) or empty for inbox.
 func (r *Repository) Create(parentID, typ, title, section string) (*Node, error) {
 	if !IsValidType(typ) {
 		return nil, fmt.Errorf("invalid node type: %s", typ)
@@ -67,6 +61,9 @@ func (r *Repository) Create(parentID, typ, title, section string) (*Node, error)
 	if title == "" {
 		return nil, errors.New("title is required")
 	}
+	if section != "" && !IsValidSection(section) {
+		return nil, fmt.Errorf("invalid section: %s", section)
+	}

 	n := &Node{
 		ID:        util.UUID7(),
@@ -87,9 +84,22 @@ func (r *Repository) Create(parentID, typ, title, section string) (*Node, error)
 	if err != nil {
 		return nil, err
 	}
+	// Bump parent's updated_at so it appears in today view.
+	if parentID != "" {
+		_ = r.touch(parentID)
+	}
 	return n, nil
 }

+// touch updates a node's updated_at without changing other fields.
+func (r *Repository) touch(id string) error {
+	t := now()
+	_, err := r.db.Exec(
+		`UPDATE nodes SET updated_at=?, revision=revision+1
+		 WHERE id=? AND deleted_at IS NULL`, t, id)
+	return err
+}
+
 func (r *Repository) insertNode(n *Node) error {
 	var parent interface{}
 	if n.ParentID != nil {
@@ -182,6 +192,41 @@ func (r *Repository) ListRoots(includeDeleted bool, section string) ([]Node, err
 	return scanNodes(rows)
 }

+// todayBoundaries returns RFC3339 start and end strings for the current day
+// in UTC, so string comparison against UTC-stored DB timestamps is correct.
+func todayBoundaries() (string, string) {
+	now := time.Now()
+	y, m, d := now.Date()
+	start := time.Date(y, m, d, 0, 0, 0, 0, now.Location())
+	end := start.Add(24 * time.Hour)
+	return start.UTC().Format(time.RFC3339), end.UTC().Format(time.RFC3339)
+}
+
+// ListTodayNodes returns active root-level nodes created or updated today.
+// This is a dynamic view, not a section — it shows the day's activity.
+// Child nodes (notes, files, folders) are not listed directly; instead,
+// their parent is bumped via touch() on creation.
+func (r *Repository) ListTodayNodes() ([]Node, error) {
+	start, end := todayBoundaries()
+	q := `SELECT id,parent_id,type,title,slug,path,section,sort_order,
+		created_at,updated_at,deleted_at,revision,device_id
+		FROM nodes
+		WHERE deleted_at IS NULL
+		AND parent_id IS NULL
+		AND (
+			(created_at >= ? AND created_at < ?)
+			OR
+			(updated_at >= ? AND updated_at < ?)
+		)
+		ORDER BY updated_at DESC, created_at DESC`
+	rows, err := r.db.Query(q, start, end, start, end)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanNodes(rows)
+}
+
 // UpdateTitle changes title (slug is recomputed).
 func (r *Repository) UpdateTitle(id, title string) error {
 	if title == "" {
@@ -35,12 +35,41 @@ var TypeSet = map[string]struct{}{
 	TypeLink:     {},
 }

+// Valid sections for root-level nodes.
+// today and inbox are service sections, not stored in nodes.section.
+var validSections = map[string]struct{}{
+	"clients":   {},
+	"projects":  {},
+	"recipes":   {},
+	"documents": {},
+	"archive":   {},
+}
+
+// serviceSections are sidebar entries that are not stored as node sections.
+var serviceSections = map[string]struct{}{
+	"today":    {},
+	"inbox":    {},
+	"activity": {},
+}
+
 // IsValidType checks whether a type string is recognized.
 func IsValidType(t string) bool {
 	_, ok := TypeSet[t]
 	return ok
 }

+// IsValidSection returns true for sections that can be stored on a node.
+func IsValidSection(s string) bool {
+	_, ok := validSections[s]
+	return ok
+}
+
+// IsServiceSection returns true for sidebar-only sections (today, inbox).
+func IsServiceSection(s string) bool {
+	_, ok := serviceSections[s]
+	return ok
+}
+
 // Slugify converts a title into a filesystem-safe slug.
 // Examples:
 //
@@ -21,7 +21,7 @@ func setupService(t *testing.T) (*Service, *nodes.Repository, string) {
 	t.Cleanup(func() { db.Close() })

 	nodeRepo := nodes.NewRepository(db)
-	fileSvc := files.NewService(db, dir)
+	fileSvc := files.NewService(db, dir, nodeRepo)
 	svc := NewService(db, dir, nodeRepo, fileSvc)
 	return svc, nodeRepo, dir
 }
@@ -0,0 +1,278 @@
+package core
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"verstak/internal/core/actions"
+	"verstak/internal/core/files"
+	"verstak/internal/core/notes"
+	"verstak/internal/core/nodes"
+	"verstak/internal/core/search"
+	"verstak/internal/core/storage"
+	"verstak/internal/core/vault"
+	"verstak/internal/core/worklog"
+)
+
+func openTestDB(t *testing.T) *storage.DB {
+	t.Helper()
+	dir := t.TempDir()
+	db, err := storage.Open(filepath.Join(dir, "test.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	t.Cleanup(func() { db.Close() })
+	return db
+}
+
+func TestMVPSmoke(t *testing.T) {
+	// Create a test vault with a real filesystem area.
+	vaultDir := t.TempDir()
+
+	// 1. Init vault.
+	if err := vault.Init(vaultDir); err != nil {
+		t.Fatalf("vault init: %v", err)
+	}
+
+	db := openTestDB(t)
+	nodeRepo := nodes.NewRepository(db)
+	fileSvc := files.NewService(db, vaultDir, nodeRepo)
+	noteSvc := notes.NewService(db, vaultDir, nodeRepo, fileSvc)
+	actionSvc := actions.NewService(db)
+	worklogSvc := worklog.NewService(db)
+	searchSvc := search.NewService(db)
+
+	// 2. Create client case structure.
+	client, err := nodeRepo.Create("", nodes.TypeCase, "ООО Ромашка", "clients")
+	if err != nil {
+		t.Fatalf("create client: %v", err)
+	}
+	project, err := nodeRepo.Create(client.ID, nodes.TypeCase, "Сайт", "")
+	if err != nil {
+		t.Fatalf("create project: %v", err)
+	}
+
+	// 3. Create a Markdown note.
+	noteNode, noteRec, err := noteSvc.Create(project.ID, "overview.md", "")
+	if err != nil {
+		t.Fatalf("create note: %v", err)
+	}
+	if noteNode.Title != "overview.md" {
+		t.Errorf("note title = %q, want overview.md", noteNode.Title)
+	}
+
+	// 4. Write note content.
+	content := "# Сайт ООО Ромашка\n\nWordPress/nginx. Иногда обновление."
+	if err := noteSvc.Save(noteNode.ID, content); err != nil {
+		t.Fatalf("save note: %v", err)
+	}
+
+	// 5. Read note back.
+	got, err := noteSvc.Read(noteNode.ID)
+	if err != nil {
+		t.Fatalf("read note: %v", err)
+	}
+	if got != content {
+		t.Errorf("note content mismatch: got %q, want %q", got, content)
+	}
+
+	// 6. Verify note file exists on disk.
+	noteFileRecs, _ := fileSvc.ListByNode(noteNode.ID)
+	notePath := ""
+	if len(noteFileRecs) > 0 {
+		notePath = noteFileRecs[0].Path
+		if _, err := os.Stat(notePath); os.IsNotExist(err) {
+			t.Errorf("note file not on disk: %s", notePath)
+		}
+	}
+	_ = noteRec
+
+	// 7. Add a dummy external file.
+	dummyPath := filepath.Join(vaultDir, "dogovor.docx")
+	if err := os.WriteFile(dummyPath, []byte("dummy contract data"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	created, err := fileSvc.AddPathCopy(project.ID, dummyPath)
+	if err != nil {
+		t.Fatalf("add file: %v", err)
+	}
+	if len(created) == 0 {
+		t.Fatal("no nodes created from file import")
+	}
+
+	// 8. Open the imported file (just verify it opens without error).
+	fileNode := created[0]
+	if fileNode.Type != nodes.TypeFile {
+		t.Errorf("expected file type, got %s", fileNode.Type)
+	}
+	fileRecs, err := fileSvc.ListByNode(fileNode.ID)
+	if err != nil || len(fileRecs) == 0 {
+		t.Fatalf("file record not found for imported file")
+	}
+	_ = fileSvc.Open(fileRecs[0].ID) // may fail in test (no display)
+
+	// 9. Verify the imported file node exists as a child of the project.
+	children, err := nodeRepo.ListChildren(project.ID, false)
+	if err != nil {
+		t.Fatalf("list children: %v", err)
+	}
+	hasImported := false
+	for _, c := range children {
+		if c.Type == nodes.TypeFile && c.Title == "dogovor.docx" {
+			hasImported = true
+			break
+		}
+	}
+	if !hasImported {
+		t.Error("imported file node not found under project")
+	}
+
+	// 10. Create actions.
+	urlAction, err := actionSvc.Create(project.ID, actions.KindOpenURL, "Открыть сайт", "", "", "https://example.com", nil, false, false)
+	if err != nil {
+		t.Fatalf("create url action: %v", err)
+	}
+	if urlAction.Kind != actions.KindOpenURL {
+		t.Errorf("action kind = %s, want %s", urlAction.Kind, actions.KindOpenURL)
+	}
+
+	folderAction, err := actionSvc.Create(project.ID, actions.KindOpenFolder, "Открыть папку", vaultDir, "", "", nil, false, false)
+	if err != nil {
+		t.Fatalf("create folder action: %v", err)
+	}
+	if folderAction.Kind != actions.KindOpenFolder {
+		t.Errorf("action kind = %s", folderAction.Kind)
+	}
+
+	// 11. List actions.
+	actionList, err := actionSvc.ListByNode(project.ID)
+	if err != nil {
+		t.Fatalf("list actions: %v", err)
+	}
+	if len(actionList) != 2 {
+		t.Errorf("expected 2 actions, got %d", len(actionList))
+	}
+
+	// 12. Run an action (open URL — should not error).
+	_, err = actionSvc.Run(urlAction.ID)
+	if err != nil {
+		t.Fatalf("run url action: %v", err)
+	}
+
+	// 13. Add worklog.
+	entry, err := worklogSvc.Add(project.ID, "Обновил витрину сайта, баннеры", "", 180, false, false)
+	if err != nil {
+		t.Fatalf("add worklog: %v", err)
+	}
+	if entry.Minutes == nil || *entry.Minutes != 180 {
+		t.Errorf("worklog minutes = %v, want 180", entry.Minutes)
+	}
+
+	// 14. List worklog.
+	worklogList, err := worklogSvc.ListByNode(project.ID)
+	if err != nil {
+		t.Fatalf("list worklog: %v", err)
+	}
+	if len(worklogList) != 1 {
+		t.Errorf("expected 1 worklog entry, got %d", len(worklogList))
+	}
+
+	// 15. Search for something (FTS5 may not be available — gracefully skip).
+	_ = searchSvc.Rebuild()
+	_ = searchSvc.Index(noteNode.ID, noteNode.Title, content, notePath, "", "note")
+	results, err := searchSvc.Search("WordPress")
+	if err != nil {
+		_ = err
+	}
+	if len(results) > 0 {
+		t.Logf("search found %d results for 'WordPress'", len(results))
+	} else {
+		t.Log("search returned no results (FTS5 may not be available)")
+	}
+
+	// 16. Verify section filtering.
+	roots, err := nodeRepo.ListRoots(false, "clients")
+	if err != nil {
+		t.Fatalf("list roots by section: %v", err)
+	}
+	found := false
+	for _, r := range roots {
+		if r.ID == client.ID {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Error("client not found in section 'clients'")
+	}
+
+	// 17. Soft delete node and verify.
+	if err := nodeRepo.SoftDelete(project.ID); err != nil {
+		t.Fatalf("soft delete project: %v", err)
+	}
+	_, err = nodeRepo.GetActive(project.ID)
+	if err == nil {
+		t.Errorf("expected error getting deleted node")
+	}
+
+	// 18. Reopen app (simulate by reconnecting to same DB).
+	db2, err := storage.Open(db.Path())
+	if err != nil {
+		t.Fatalf("reopen db: %v", err)
+	}
+	defer db2.Close()
+	repo2 := nodes.NewRepository(db2)
+
+	// 19. Verify data persists.
+	client2, err := repo2.GetActive(client.ID)
+	if err != nil {
+		t.Fatalf("get client after reopen: %v", err)
+	}
+	if client2.Title != "ООО Ромашка" {
+		t.Errorf("client title after reopen = %q", client2.Title)
+	}
+
+	// 20. Verify soft-deleted node stays soft-deleted.
+	allNodes, err := repo2.ListChildren(client.ID, true)
+	if err != nil {
+		t.Fatalf("list children after reopen: %v", err)
+	}
+	if len(allNodes) == 0 {
+		t.Error("no children found after reopen")
+	}
+
+	t.Log("MVP smoke test passed!")
+}
+
+func TestMVPSmoke_WorklogReport(t *testing.T) {
+	db := openTestDB(t)
+	nodeRepo := nodes.NewRepository(db)
+	worklogSvc := worklog.NewService(db)
+
+	n, err := nodeRepo.Create("", nodes.TypeCase, "Test", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = worklogSvc.Add(n.ID, "Task 1", "", 60, true, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = worklogSvc.Add(n.ID, "Task 2", "", 30, false, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	report, err := worklogSvc.Report(n.ID)
+	if err != nil {
+		t.Fatalf("report: %v", err)
+	}
+	if !strings.Contains(report, "Task 1") || !strings.Contains(report, "Task 2") {
+		t.Error("report missing entries")
+	}
+	if !strings.Contains(report, "Task 1") || !strings.Contains(report, "Task 2") {
+		t.Error("report missing tasks")
+	}
+	t.Logf("report:\n%s", report)
+}
@@ -0,0 +1,17 @@
+package storage
+
+// migration008 — activity_events table for the Сегодня (Today) dashboard.
+const migration008 = `
+CREATE TABLE IF NOT EXISTS activity_events (
+    id TEXT PRIMARY KEY,
+    node_id TEXT NOT NULL,
+    parent_id TEXT,
+    event_type TEXT NOT NULL,
+    title TEXT NOT NULL DEFAULT '',
+    metadata TEXT NOT NULL DEFAULT '{}',
+    created_at TEXT NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_ae_created ON activity_events(created_at);
+CREATE INDEX IF NOT EXISTS idx_ae_parent ON activity_events(parent_id);
+`
@@ -0,0 +1,8 @@
+package storage
+
+// migration009 — add target_type, target_id, target_path to activity_events.
+const migration009 = `
+ALTER TABLE activity_events ADD COLUMN target_type TEXT;
+ALTER TABLE activity_events ADD COLUMN target_id TEXT;
+ALTER TABLE activity_events ADD COLUMN target_path TEXT;
+`
@@ -0,0 +1,29 @@
+package storage
+
+// migration010 — sync_ops table for recording operations to push to sync server.
+const migration010 = `
+CREATE TABLE IF NOT EXISTS sync_ops (
+    id TEXT PRIMARY KEY,
+    op_id TEXT NOT NULL UNIQUE,
+    device_id TEXT NOT NULL,
+    entity_type TEXT NOT NULL,
+    entity_id TEXT NOT NULL,
+    op_type TEXT NOT NULL,
+    payload_json TEXT NOT NULL DEFAULT '{}',
+    created_at TEXT NOT NULL,
+    pushed_at TEXT,
+    applied_at TEXT
+);
+
+CREATE INDEX IF NOT EXISTS idx_sync_ops_pushed ON sync_ops(pushed_at);
+CREATE INDEX IF NOT EXISTS idx_sync_ops_entity ON sync_ops(entity_type, entity_id);
+
+CREATE TABLE IF NOT EXISTS sync_state (
+    device_id TEXT PRIMARY KEY,
+    server_url TEXT NOT NULL DEFAULT '',
+    api_key TEXT NOT NULL DEFAULT '',
+    last_push_rev INTEGER NOT NULL DEFAULT 0,
+    last_pull_rev INTEGER NOT NULL DEFAULT 0,
+    last_sync_at TEXT
+);
+`
@@ -0,0 +1,6 @@
+package storage
+
+// migration011 — add last_pull_seq to sync_state.
+const migration011 = `
+ALTER TABLE sync_state ADD COLUMN last_pull_seq INTEGER NOT NULL DEFAULT 0;
+`
@@ -64,7 +64,10 @@ var migrationFiles = map[int]string{
 	5:  migration005,
 	6:  migration006,
 	// 7: migration007 (FTS5) — created lazily by search.Rebuild()
-	// 8: migration008, etc.
+	8:  migration008,
+	9:  migration009,
+	10: migration010,
+	11: migration011,
 }

 func (db *DB) runInitialSchema() error {
@@ -0,0 +1,80 @@
+package sync
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+)
+
+// BlobDir returns the path to .verstak/blobs/ inside the vault.
+func BlobDir(vaultRoot string) string {
+	return filepath.Join(vaultRoot, ".verstak", "blobs")
+}
+
+// BlobPath returns the on-disk path for a SHA-256 hash.
+func BlobPath(blobsDir, shaHex string) string {
+	return filepath.Join(blobsDir, shaHex[:2], shaHex[2:4], shaHex)
+}
+
+// HashFile computes SHA-256 of a file.
+func HashFile(path string) (string, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+	h := sha256.New()
+	if _, err := io.Copy(h, f); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(h.Sum(nil)), nil
+}
+
+// HashBytes computes SHA-256 of byte data.
+func HashBytes(data []byte) string {
+	h := sha256.Sum256(data)
+	return hex.EncodeToString(h[:])
+}
+
+// StoreBlob copies a file into the blob store, returns its SHA-256.
+func StoreBlob(blobsDir, srcPath string) (string, error) {
+	shaHex, err := HashFile(srcPath)
+	if err != nil {
+		return "", err
+	}
+	dest := BlobPath(blobsDir, shaHex)
+	if _, err := os.Stat(dest); err == nil {
+		return shaHex, nil // already exists
+	}
+	if err := os.MkdirAll(filepath.Dir(dest), 0750); err != nil {
+		return "", err
+	}
+	src, err := os.Open(srcPath)
+	if err != nil {
+		return "", err
+	}
+	defer src.Close()
+
+	dst, err := os.Create(dest)
+	if err != nil {
+		return "", err
+	}
+	defer dst.Close()
+
+	if _, err := io.Copy(dst, src); err != nil {
+		return "", err
+	}
+	_ = dst.Sync()
+	return shaHex, nil
+}
+
+// ReadBlob reads a blob by SHA-256 hash.
+func ReadBlob(blobsDir, shaHex string) ([]byte, error) {
+	return os.ReadFile(BlobPath(blobsDir, shaHex))
+}
+
+// Ensure the package compiles without unused errors.
+var _ = fmt.Sprintf
@@ -0,0 +1,346 @@
+package sync
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+// Client communicates with the Verstak Sync Server.
+type Client struct {
+	ServerURL   string
+	APIKey      string // legacy API key
+	DeviceToken string // new device token
+	DeviceID    string
+	VaultRoot   string
+	HTTP        *http.Client
+}
+
+// NewClient creates a sync client.
+func NewClient(serverURL, apiKey, deviceID, vaultRoot string) *Client {
+	return &Client{
+		ServerURL: serverURL,
+		APIKey:    apiKey,
+		DeviceID:  deviceID,
+		VaultRoot: vaultRoot,
+		HTTP: &http.Client{Timeout: 30 * time.Second},
+	}
+}
+
+// PairDevice calls POST /api/client/pair and returns device_id and device_token.
+func (c *Client) PairDevice(serverURL, username, password, deviceName, clientVersion string) (deviceID, deviceToken string, err error) {
+	body := map[string]string{
+		"login":          username,
+		"password":       password,
+		"device_name":    deviceName,
+		"client_version": clientVersion,
+	}
+	var resp struct {
+		DeviceID    string `json:"device_id"`
+		DeviceToken string `json:"device_token"`
+	}
+	savedURL := c.ServerURL
+	c.ServerURL = serverURL
+	err = c.post("/api/client/pair", body, &resp)
+	c.ServerURL = savedURL
+	if err != nil {
+		return "", "", err
+	}
+	return resp.DeviceID, resp.DeviceToken, nil
+}
+
+// GetMe calls GET /api/client/me and returns device info.
+type DeviceInfo struct {
+	DeviceID      string `json:"device_id"`
+	UserID        string `json:"user_id"`
+	Username      string `json:"username"`
+	DeviceName    string `json:"device_name"`
+	ClientVersion string `json:"client_version"`
+	LastSeen      string `json:"last_seen"`
+	RevokedAt     string `json:"revoked_at"`
+	CreatedAt     string `json:"created_at"`
+}
+
+func (c *Client) GetMe() (*DeviceInfo, error) {
+	var resp DeviceInfo
+	if err := c.get("/api/client/me", &resp); err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+// RevokeCurrent calls POST /api/client/revoke-current.
+func (c *Client) RevokeCurrent() error {
+	var resp struct {
+		Status string `json:"status"`
+	}
+	return c.post("/api/client/revoke-current", nil, &resp)
+}
+
+// RegisterDevice calls POST /api/v1/device/register and returns the API key.
+func (c *Client) RegisterDevice(name string) (apiKey string, err error) {
+	body := map[string]string{"name": name}
+	var resp struct {
+		DeviceID string `json:"device_id"`
+		APIKey   string `json:"api_key"`
+	}
+	if err := c.post("/api/v1/device/register", body, &resp); err != nil {
+		return "", err
+	}
+	return resp.APIKey, nil
+}
+
+// RegisterDeviceWithAuth registers a device with user credentials.
+func (c *Client) RegisterDeviceWithAuth(name, username, password string) (deviceID, apiKey string, err error) {
+	body := map[string]string{"name": name, "username": username, "password": password}
+	var resp struct {
+		DeviceID string `json:"device_id"`
+		APIKey   string `json:"api_key"`
+	}
+	// Temporarily clear API key for this request (server expects login/password, not API key).
+	savedKey := c.APIKey
+	c.APIKey = ""
+	err = c.post("/api/v1/device/register", body, &resp)
+	c.APIKey = savedKey
+	if err != nil {
+		return "", "", err
+	}
+	return resp.DeviceID, resp.APIKey, nil
+}
+
+// Login authenticates with user credentials and returns a session token.
+func (c *Client) Login(username, password string) (token string, err error) {
+	body := map[string]string{"username": username, "password": password}
+	var resp struct {
+		Token string `json:"token"`
+	}
+	savedKey := c.APIKey
+	c.APIKey = ""
+	err = c.post("/api/v1/auth/login", body, &resp)
+	c.APIKey = savedKey
+	if err != nil {
+		return "", err
+	}
+	return resp.Token, nil
+}
+
+// TestAuth checks credentials without creating a device.
+func (c *Client) TestAuth(serverURL, username, password string) error {
+	body := map[string]string{"username": username, "password": password}
+	savedURL := c.ServerURL
+	savedKey := c.APIKey
+	c.ServerURL = serverURL
+	c.APIKey = ""
+	err := c.post("/api/auth/test", body, nil)
+	c.ServerURL = savedURL
+	c.APIKey = savedKey
+	return err
+}
+
+// PushRequest is the payload for POST /sync/push.
+type PushRequest struct {
+	DeviceID      string   `json:"device_id"`
+	IdempotencyKey string  `json:"idempotency_key,omitempty"`
+	Ops           []PushOp `json:"ops"`
+}
+
+// PushOp is a single operation in a push request.
+type PushOp struct {
+	OpID              string `json:"op_id"`
+	EntityType        string `json:"entity_type"`
+	EntityID          string `json:"entity_id"`
+	OpType            string `json:"op_type"`
+	PayloadJSON       string `json:"payload_json"`
+	ClientSequence    int    `json:"client_sequence"`
+	LastSeenServerSeq int    `json:"last_seen_server_seq"`
+	CreatedAt         string `json:"created_at"`
+}
+
+// PushResponse is the response from POST /sync/push.
+type PushResponse struct {
+	Accepted  []string               `json:"accepted"`
+	Count     int                    `json:"count"`
+	Conflicts []map[string]interface{} `json:"conflicts"`
+}
+
+// Push sends local operations to the server.
+func (c *Client) Push(ops []Op) (*PushResponse, error) {
+	pushOps := make([]PushOp, len(ops))
+	for i, op := range ops {
+		pushOps[i] = PushOp{
+			OpID:              op.OpID,
+			EntityType:        op.EntityType,
+			EntityID:          op.EntityID,
+			OpType:            op.OpType,
+			PayloadJSON:       op.PayloadJSON,
+			ClientSequence:    op.ClientSequence,
+			LastSeenServerSeq: op.LastSeenServerSeq,
+			CreatedAt:         op.CreatedAt,
+		}
+	}
+	req := PushRequest{DeviceID: c.DeviceID, Ops: pushOps}
+	var resp PushResponse
+	if err := c.post("/api/v1/sync/push", req, &resp); err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+// PullRequest is the payload for POST /sync/pull.
+type PullRequest struct {
+	SinceSequence int `json:"since_sequence"`
+}
+
+// PullResponse is the response from POST /sync/pull.
+type PullResponse struct {
+	ServerSequence int  `json:"server_sequence"`
+	Ops            []Op `json:"ops"`
+}
+
+// Pull fetches remote operations since a given sequence.
+func (c *Client) Pull(sinceSequence int) (*PullResponse, error) {
+	req := PullRequest{SinceSequence: sinceSequence}
+	var resp PullResponse
+	if err := c.post("/api/v1/sync/pull", req, &resp); err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+// UploadBlob uploads a file to the server and returns its SHA-256.
+func (c *Client) UploadBlob(localPath string) (sha256 string, err error) {
+	var b bytes.Buffer
+	w := multipart.NewWriter(&b)
+	fw, err := w.CreateFormFile("file", filepath.Base(localPath))
+	if err != nil {
+		return "", err
+	}
+	f, err := os.Open(localPath)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+	if _, err := io.Copy(fw, f); err != nil {
+		return "", err
+	}
+	w.Close()
+
+	req, err := http.NewRequest("POST", c.ServerURL+"/api/v1/blobs/", &b)
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("Content-Type", w.FormDataContentType())
+	req.Header.Set("Authorization", "Bearer "+c.bearerToken())
+
+	resp, err := c.HTTP.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	var result struct {
+		SHA256 string `json:"sha256"`
+		Size   int    `json:"size"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return "", err
+	}
+	return result.SHA256, nil
+}
+
+// DownloadBlob downloads a blob by SHA-256 hash.
+func (c *Client) DownloadBlob(sha256, destPath string) error {
+	req, err := http.NewRequest("GET", c.ServerURL+"/api/v1/blobs/"+sha256, nil)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Authorization", "Bearer "+c.bearerToken())
+
+	resp, err := c.HTTP.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("download blob: HTTP %d", resp.StatusCode)
+	}
+
+	out, err := os.Create(destPath)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+	_, err = io.Copy(out, resp.Body)
+	return err
+}
+
+// --- internal ---
+
+func (c *Client) bearerToken() string {
+	if c.DeviceToken != "" {
+		return c.DeviceToken
+	}
+	return c.APIKey
+}
+
+func (c *Client) post(path string, body, result interface{}) error {
+	var b bytes.Buffer
+	if body != nil {
+		if err := json.NewEncoder(&b).Encode(body); err != nil {
+			return err
+		}
+	}
+	req, err := http.NewRequest("POST", c.ServerURL+path, &b)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+c.bearerToken())
+
+	resp, err := c.HTTP.Do(req)
+	if err != nil {
+		return fmt.Errorf("http: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		data, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("server %d: %s", resp.StatusCode, string(data))
+	}
+
+	if result != nil {
+		return json.NewDecoder(resp.Body).Decode(result)
+	}
+	return nil
+}
+
+func (c *Client) get(path string, result interface{}) error {
+	req, err := http.NewRequest("GET", c.ServerURL+path, nil)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Authorization", "Bearer "+c.bearerToken())
+
+	resp, err := c.HTTP.Do(req)
+	if err != nil {
+		return fmt.Errorf("http: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		data, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("server %d: %s", resp.StatusCode, string(data))
+	}
+
+	if result != nil {
+		return json.NewDecoder(resp.Body).Decode(result)
+	}
+	return nil
+}
@@ -0,0 +1,188 @@
+package sync
+
+import (
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"verstak/internal/core/storage"
+	"verstak/internal/core/util"
+)
+
+// Entity types (matches activity targets).
+const (
+	EntityNode    = "node"
+	EntityNote    = "note"
+	EntityFile    = "file"
+	EntityFolder  = "folder"
+	EntityAction  = "action"
+	EntityWorklog = "worklog"
+)
+
+// Op types.
+const (
+	OpCreate = "create"
+	OpUpdate = "update"
+	OpDelete = "delete"
+	OpMove   = "move"
+)
+
+// Op represents a sync operation.
+type Op struct {
+	ID                string   `json:"id"`
+	OpID              string   `json:"op_id"`
+	ServerSequence    int      `json:"server_sequence,omitempty"`
+	DeviceID          string   `json:"device_id,omitempty"`
+	EntityType        string   `json:"entity_type"`
+	EntityID          string   `json:"entity_id"`
+	OpType            string   `json:"op_type"`
+	PayloadJSON       string   `json:"payload_json"`
+	CreatedAt         string   `json:"created_at"`
+	PushedAt          *string  `json:"pushed_at,omitempty"`
+	ClientSequence    int      `json:"client_sequence,omitempty"`
+	LastSeenServerSeq int      `json:"last_seen_server_seq,omitempty"`
+}
+
+// Service records and manages sync operations.
+type Service struct {
+	db       *storage.DB
+	deviceID string
+}
+
+// NewService creates a sync service.
+func NewService(db *storage.DB, deviceID string) *Service {
+	return &Service{db: db, deviceID: deviceID}
+}
+
+// RecordOp writes a sync operation to the local sync_ops table.
+func (s *Service) RecordOp(entityType, entityID, opType string, payload interface{}) error {
+	id := util.UUID7()
+	now := time.Now().UTC().Format(time.RFC3339)
+
+	var payloadStr string
+	if payload != nil {
+		b, err := json.Marshal(payload)
+		if err != nil {
+			return err
+		}
+		payloadStr = string(b)
+	}
+
+	_, err := s.db.Exec(
+		`INSERT INTO sync_ops (id, op_id, device_id, entity_type, entity_id, op_type, payload_json, created_at)
+		 VALUES (?, ?, ?, ?, ?, ?, ?, ?)`,
+		id, id, s.deviceID, entityType, entityID, opType, payloadStr, now,
+	)
+	return err
+}
+
+// RecordRemoteOp writes a remote op to the local sync_ops table (already applied server-side).
+func (s *Service) RecordRemoteOp(op Op) error {
+	now := time.Now().UTC().Format(time.RFC3339)
+	_, err := s.db.Exec(
+		`INSERT OR IGNORE INTO sync_ops (id, op_id, device_id, entity_type, entity_id, op_type, payload_json, created_at, pushed_at, applied_at)
+		 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		op.OpID+"-remote", op.OpID, op.DeviceID, op.EntityType, op.EntityID, op.OpType, op.PayloadJSON, op.CreatedAt, now, now,
+	)
+	return err
+}
+
+// GetUnpushedOps returns ops that have not been pushed yet.
+func (s *Service) GetUnpushedOps() ([]Op, error) {
+	rows, err := s.db.Query(
+		`SELECT id, op_id, device_id, entity_type, entity_id, op_type, payload_json, created_at, pushed_at
+		 FROM sync_ops WHERE pushed_at IS NULL ORDER BY created_at`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	return scanOps(rows)
+}
+
+// MarkPushed marks ops as pushed to server.
+func (s *Service) MarkPushed(opIDs []string) error {
+	now := time.Now().UTC().Format(time.RFC3339)
+	for _, id := range opIDs {
+		_, err := s.db.Exec("UPDATE sync_ops SET pushed_at=? WHERE op_id=?", now, id)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// MarkApplied marks remote ops as applied locally.
+func (s *Service) MarkApplied(opIDs []string) error {
+	now := time.Now().UTC().Format(time.RFC3339)
+	for _, id := range opIDs {
+		_, err := s.db.Exec("UPDATE sync_ops SET applied_at=? WHERE op_id=?", now, id)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GetState returns the current sync state.
+func (s *Service) GetState() (serverURL, apiKey string, lastPullSeq int, lastSyncAt string, err error) {
+	err = s.db.QueryRow(
+		`SELECT server_url, api_key, last_pull_seq, COALESCE(last_sync_at,'') FROM sync_state WHERE device_id=?`,
+		s.deviceID).Scan(&serverURL, &apiKey, &lastPullSeq, &lastSyncAt)
+	if err == sql.ErrNoRows {
+		return "", "", 0, "", nil
+	}
+	return
+}
+
+// SetState saves sync connection state.
+func (s *Service) SetState(serverURL, apiKey string) error {
+	_, err := s.db.Exec(
+		`INSERT INTO sync_state (device_id, server_url, api_key, last_pull_seq, last_sync_at)
+		 VALUES (?, ?, ?, 0, '')
+		 ON CONFLICT(device_id) DO UPDATE SET
+		   server_url=excluded.server_url,
+		   api_key=excluded.api_key`,
+		s.deviceID, serverURL, apiKey,
+	)
+	return err
+}
+
+// SetLastPullSeq updates the last pulled server sequence.
+func (s *Service) SetLastPullSeq(seq int) error {
+	_, err := s.db.Exec("UPDATE sync_state SET last_pull_seq=? WHERE device_id=?", seq, s.deviceID)
+	return err
+}
+
+// GetDeviceID returns the device ID used by this service.
+func (s *Service) GetDeviceID() string {
+	return s.deviceID
+}
+
+// SetLastSyncAt updates the last sync timestamp.
+func (s *Service) SetLastSyncAt(t string) error {
+	_, err := s.db.Exec("UPDATE sync_state SET last_sync_at=? WHERE device_id=?", t, s.deviceID)
+	return err
+}
+
+// --- helpers ---
+
+func scanOps(rows *sql.Rows) ([]Op, error) {
+	var out []Op
+	for rows.Next() {
+		var o Op
+		var pushedAt sql.NullString
+		if err := rows.Scan(&o.ID, &o.OpID, &o.DeviceID, &o.EntityType, &o.EntityID,
+			&o.OpType, &o.PayloadJSON, &o.CreatedAt, &pushedAt); err != nil {
+			return nil, err
+		}
+		if pushedAt.Valid {
+			o.PushedAt = &pushedAt.String
+		}
+		out = append(out, o)
+	}
+	return out, rows.Err()
+}
+
+// MustVar ensures the package is not considered unused.
+var _ = fmt.Sprintf
@@ -0,0 +1,311 @@
+package sync
+
+import (
+	"bytes"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+// TestE2ESync starts a real server process and tests two-client sync.
+func TestE2ESync(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping e2e sync test in short mode")
+	}
+
+	// Find the server binary (must be pre-built).
+	serverBin := findServerBin(t)
+	if serverBin == "" {
+		t.Skip("verstak-server binary not found; build with 'go build -o verstak-server ./cmd/verstak-server'")
+	}
+
+	// Create temp directories.
+	serverDir := t.TempDir()
+	vaultA := t.TempDir()
+	vaultB := t.TempDir()
+
+	// Init vaults.
+	os.MkdirAll(filepath.Join(vaultA, ".verstak"), 0750)
+	os.MkdirAll(filepath.Join(vaultB, ".verstak"), 0750)
+
+	// Pick a random port.
+	serverPort := pickPort(t)
+
+	// Start server.
+	serverDataDir := filepath.Join(serverDir, "data")
+	os.MkdirAll(serverDataDir, 0750)
+
+	cmd := exec.Command(serverBin,
+		"-port", fmt.Sprintf("%d", serverPort),
+		"-data", serverDataDir,
+		"-admin-user", "admin",
+		"-admin-pass", "admin",
+	)
+	cmd.Stderr = os.Stderr
+	if err := cmd.Start(); err != nil {
+		t.Fatalf("start server: %v", err)
+	}
+	defer cmd.Process.Kill()
+
+	// Wait for server.
+	serverURL := fmt.Sprintf("http://127.0.0.1:%d", serverPort)
+	waitForServer(t, serverURL, 10*time.Second)
+
+	// Register user.
+	regBody := fmt.Sprintf(`{"username":"testuser","email":"test@test.com","password":"password123"}`)
+	resp, err := http.Post(serverURL+"/api/v1/auth/register", "application/json", strings.NewReader(regBody))
+	if err != nil {
+		t.Fatalf("register: %v", err)
+	}
+	io.Copy(io.Discard, resp.Body)
+	resp.Body.Close()
+
+	// Confirm email by directly updating the server DB.
+	dbPath := filepath.Join(serverDataDir, "server.db")
+	confirmUser(t, dbPath, "testuser")
+
+	// Test auth (the new endpoint).
+	testBody := fmt.Sprintf(`{"username":"testuser","password":"password123"}`)
+	resp, err = http.Post(serverURL+"/api/auth/test", "application/json", strings.NewReader(testBody))
+	if err != nil {
+		t.Fatalf("auth test: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		body, _ := io.ReadAll(resp.Body)
+		resp.Body.Close()
+		t.Fatalf("auth test status %d: %s", resp.StatusCode, string(body))
+	}
+	resp.Body.Close()
+
+	// Pair device A.
+	pairBody := fmt.Sprintf(`{"login":"testuser","password":"password123","device_name":"Client A","client_version":"test/v1"}`)
+	resp, err = http.Post(serverURL+"/api/client/pair", "application/json", strings.NewReader(pairBody))
+	if err != nil {
+		t.Fatalf("pair A: %v", err)
+	}
+	var pairResp struct {
+		DeviceID    string `json:"device_id"`
+		DeviceToken string `json:"device_token"`
+		UserID      string `json:"user_id"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&pairResp); err != nil {
+		t.Fatalf("decode pair A: %v", err)
+	}
+	resp.Body.Close()
+	deviceIDA := pairResp.DeviceID
+	tokenA := pairResp.DeviceToken
+	t.Logf("Client A: device=%s token=%s...%s", deviceIDA, tokenA[:16], tokenA[len(tokenA)-8:])
+
+	// Pair device B.
+	pairBody = fmt.Sprintf(`{"login":"testuser","password":"password123","device_name":"Client B","client_version":"test/v1"}`)
+	resp, err = http.Post(serverURL+"/api/client/pair", "application/json", strings.NewReader(pairBody))
+	if err != nil {
+		t.Fatalf("pair B: %v", err)
+	}
+	var pairRespB struct {
+		DeviceID    string `json:"device_id"`
+		DeviceToken string `json:"device_token"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&pairRespB); err != nil {
+		t.Fatalf("decode pair B: %v", err)
+	}
+	resp.Body.Close()
+	deviceIDB := pairRespB.DeviceID
+	tokenB := pairRespB.DeviceToken
+	t.Logf("Client B: device=%s token=%s...%s", deviceIDB, tokenB[:16], tokenB[len(tokenB)-8:])
+
+	// Now create a node on Client A by posting a sync op.
+	// Simulating what the GUI does: push a "node create" op.
+	nodeID := "test-node-001"
+	now := time.Now().UTC().Format(time.RFC3339)
+	pushPayload := map[string]interface{}{
+		"device_id": deviceIDA,
+		"ops": []map[string]interface{}{
+			{
+				"op_id":              "op-node-create-001",
+				"entity_type":        "node",
+				"entity_id":          nodeID,
+				"op_type":            "create",
+				"payload_json": fmt.Sprintf(
+					`{"id":"%s","parent_id":"","type":"case","title":"Test Project","slug":"test-project","section":"projects","created_at":"%s","updated_at":"%s"}`,
+					nodeID, now, now),
+				"client_sequence":    1,
+				"last_seen_server_seq": 0,
+				"created_at":         now,
+			},
+		},
+		"idempotency_key": "e2e-test-push-1",
+	}
+
+	pushBody, _ := json.Marshal(pushPayload)
+	req, _ := http.NewRequest("POST", serverURL+"/api/v1/sync/push", bytes.NewReader(pushBody))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+tokenA)
+	resp, err = http.DefaultClient.Do(req)
+	if err != nil {
+		t.Fatalf("push A: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		body, _ := io.ReadAll(resp.Body)
+		resp.Body.Close()
+		t.Fatalf("push A status %d: %s", resp.StatusCode, string(body))
+	}
+	var pushRespA struct {
+		Accepted  []string `json:"accepted"`
+		Conflicts []interface{} `json:"conflicts"`
+	}
+	json.NewDecoder(resp.Body).Decode(&pushRespA)
+	resp.Body.Close()
+	t.Logf("Push A accepted: %v", pushRespA.Accepted)
+
+	// Pull from Client B — should get the node op.
+	pullReq := map[string]interface{}{"since_sequence": 0}
+	pullBody, _ := json.Marshal(pullReq)
+	req, _ = http.NewRequest("POST", serverURL+"/api/v1/sync/pull", bytes.NewReader(pullBody))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+tokenB)
+	resp, err = http.DefaultClient.Do(req)
+	if err != nil {
+		t.Fatalf("pull B: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		body, _ := io.ReadAll(resp.Body)
+		resp.Body.Close()
+		t.Fatalf("pull B status %d: %s", resp.StatusCode, string(body))
+	}
+	var pullRespB struct {
+		ServerSequence int `json:"server_sequence"`
+		Ops            []struct {
+			OpID        string `json:"op_id"`
+			EntityType  string `json:"entity_type"`
+			EntityID    string `json:"entity_id"`
+			OpType      string `json:"op_type"`
+			PayloadJSON string `json:"payload_json"`
+		} `json:"ops"`
+	}
+	json.NewDecoder(resp.Body).Decode(&pullRespB)
+	resp.Body.Close()
+
+	if len(pullRespB.Ops) == 0 {
+		t.Fatal("Client B pulled 0 ops, expected at least 1")
+	}
+	t.Logf("Client B pulled %d ops (server seq=%d)", len(pullRespB.Ops), pullRespB.ServerSequence)
+
+	foundNodeOp := false
+	for _, op := range pullRespB.Ops {
+		if op.EntityType == "node" && op.EntityID == nodeID && op.OpType == "create" {
+			foundNodeOp = true
+
+			// Verify payload contents.
+			var payload map[string]interface{}
+			json.Unmarshal([]byte(op.PayloadJSON), &payload)
+			if payload["title"] != "Test Project" {
+				t.Errorf("expected title 'Test Project', got %v", payload["title"])
+			}
+			if payload["type"] != "case" {
+				t.Errorf("expected type 'case', got %v", payload["type"])
+			}
+			if payload["section"] != "projects" {
+				t.Errorf("expected section 'projects', got %v", payload["section"])
+			}
+			t.Logf("Node payload verified: title=%v type=%v section=%v",
+				payload["title"], payload["type"], payload["section"])
+		}
+	}
+	if !foundNodeOp {
+		t.Errorf("node create op not found in pulled ops")
+	}
+
+	// Test the auth test endpoint doesn't create devices.
+	// Count devices before via direct DB access.
+	beforeCount := countDevices(t, dbPath)
+	t.Logf("Devices before auth test calls: %d (should be 2: A + B)", beforeCount)
+
+	// Call test auth multiple times.
+	for i := 0; i < 3; i++ {
+		testBody := fmt.Sprintf(`{"username":"testuser","password":"password123"}`)
+		resp, err = http.Post(serverURL+"/api/auth/test", "application/json", strings.NewReader(testBody))
+		if err != nil {
+			t.Fatalf("auth test iteration %d: %v", i, err)
+		}
+		resp.Body.Close()
+	}
+
+	// Count devices after — should be same.
+	afterCount := countDevices(t, dbPath)
+	if afterCount != beforeCount {
+		t.Errorf("device count changed after auth test: before=%d after=%d (should be equal)", beforeCount, afterCount)
+	}
+
+	t.Log("E2E sync test passed!")
+}
+
+func findServerBin(t *testing.T) string {
+	t.Helper()
+	// Check common locations.
+	candidates := []string{
+		"verstak-server",
+		"../../../verstak-server",
+	}
+	for _, c := range candidates {
+		if _, err := os.Stat(c); err == nil {
+			return c
+		}
+	}
+	return ""
+}
+
+func pickPort(t *testing.T) int {
+	t.Helper()
+	// Try a few ports — for testing, a fixed port is OK since tests use temp dirs.
+	return 18999
+}
+
+func waitForServer(t *testing.T, url string, timeout time.Duration) {
+	t.Helper()
+	deadline := time.Now().Add(timeout)
+	for time.Now().Before(deadline) {
+		resp, err := http.Get(url + "/api/v1/health")
+		if err == nil {
+			resp.Body.Close()
+			return
+		}
+		time.Sleep(200 * time.Millisecond)
+	}
+	t.Fatalf("server not ready within %v at %s", timeout, url)
+}
+
+func confirmUser(t *testing.T, dbPath, username string) {
+	t.Helper()
+	db, err := sql.Open("sqlite3", dbPath)
+	if err != nil {
+		t.Fatalf("open server db for confirm: %v", err)
+	}
+	defer db.Close()
+	_, err = db.Exec("UPDATE server_users SET confirmed=1 WHERE username=?", username)
+	if err != nil {
+		t.Fatalf("confirm user: %v", err)
+	}
+}
+
+func countDevices(t *testing.T, dbPath string) int {
+	t.Helper()
+	db, err := sql.Open("sqlite3", dbPath)
+	if err != nil {
+		t.Fatalf("open server db for count: %v", err)
+	}
+	defer db.Close()
+	var count int
+	db.QueryRow("SELECT COUNT(*) FROM server_devices").Scan(&count)
+	return count
+}
@@ -38,7 +38,7 @@ type Server struct {
 // NewServer creates a GUI server for the given vault.
 func NewServer(db *storage.DB, vaultRoot string) *Server {
 	nodeRepo := nodes.NewRepository(db)
-	fileSvc := files.NewService(db, vaultRoot)
+	fileSvc := files.NewService(db, vaultRoot, nodeRepo)
 	noteSvc := notes.NewService(db, vaultRoot, nodeRepo, fileSvc)
 	actionSvc := actions.NewService(db)
 	workSvc := worklog.NewService(db)
@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "=== Verstak Sync E2E Smoke Test ==="
+
+SERVER_PORT=18999
+SDIR=$(mktemp -d)
+VD=$(mktemp -d)
+cleanup() { kill "$SPID" 2>/dev/null || true; rm -rf "$SDIR" "$VD"; }
+trap cleanup EXIT
+
+echo ":: Build"
+go build -o /tmp/vs-server ./cmd/verstak-server/
+go build -o /tmp/vs-cli ./cmd/verstak/
+
+echo ":: Start server"
+/tmp/vs-server --port "$SERVER_PORT" --data "$SDIR" --admin-user admin --admin-pass pass > /dev/null 2>&1 &
+SPID=$!
+sleep 2
+
+echo ":: Health"
+curl -sf "http://localhost:$SERVER_PORT/api/v1/health" | grep -q '"ok"' && echo "  OK"
+
+echo ":: Register device"
+# Register user first
+curl -sf -X POST "http://localhost:$SERVER_PORT/api/v1/auth/register" \
+  -H "Content-Type: application/json" \
+  -d '{"username":"smokeuser","email":"smoke@test.local","password":"mypass123"}' > /dev/null
+# Confirm email
+TOKEN=$(sqlite3 "$SDIR/server.db" "SELECT token FROM server_email_tokens WHERE purpose='confirm' LIMIT 1")
+curl -sf "http://localhost:$SERVER_PORT/api/v1/auth/confirm?token=$TOKEN" > /dev/null
+# Register device with user creds
+REG=$(curl -sf -X POST "http://localhost:$SERVER_PORT/api/v1/device/register" \
+  -H "Content-Type: application/json" -d '{"name":"smoke","username":"smokeuser","password":"mypass123"}')
+DID=$(echo "$REG" | python3 -c "import sys,json;print(json.load(sys.stdin)['device_id'])")
+AKEY=$(echo "$REG" | python3 -c "import sys,json;print(json.load(sys.stdin)['api_key'])")
+echo "  device=$DID"
+
+echo ":: Init vault"
+/tmp/vs-cli init --vault "$VD"
+
+echo ":: Configure sync"
+cat > "$VD/.verstak/config.yml" <<YML
+sync:
+  server_url: http://localhost:$SERVER_PORT
+  api_key: $AKEY
+  device_id: $DID
+  auto_sync: false
+YML
+
+echo ":: Insert sync op (simulate recorded op)"
+sqlite3 "$VD/.verstak/index.db" \
+  "INSERT INTO sync_ops (id, op_id, device_id, entity_type, entity_id, op_type, payload_json, created_at) VALUES ('e1','e1','$DID','node','n1','create','{\"title\":\"t\"}',datetime('now'));"
+
+echo ":: Push"
+/tmp/vs-cli sync push --vault "$VD" | grep -q "Pushed 1" && echo "  OK"
+
+echo ":: Pull"
+/tmp/vs-cli sync pull --vault "$VD" | grep -q "Pulled" && echo "  OK"
+
+echo ":: Status"
+/tmp/vs-cli sync status --vault "$VD"
+
+echo ""
+echo "=== ALL TESTS PASSED ==="
Author	SHA1	Message	Date
mirivlad	50e7e95844	test(sync): add end-to-end two-client sync smoke test TestE2ESync starts a real server process, registers user, pairs two devices, pushes a node op from client A, pulls on client B, verifies payload content, and confirms /api/auth/test does not create devices.	2026-06-02 08:02:19 +08:00
mirivlad	4a96aa3468	fix(sync): expand payloads, implement ApplyRemoteOp, fix SyncTestConnection and auto sync - Expand all RecordOp payloads with full entity data needed for reconstruction - Add applyRemoteOp with handlers for node/note/file/action/worklog CRUD - SyncNow() now applies pulled ops to real DB tables + sets LastSeenServerSeq - SyncTestConnection uses /api/auth/test instead of PairDevice - autoSyncLoop respects configured interval with lastSync timing - Add helper functions: nodePayload, notePayload, filePayload, actionPayload, worklogPayload	2026-06-02 08:02:15 +08:00
mirivlad	f8f9510e2a	fix(sync): add /api/auth/test endpoint, fix CSS %& vet warnings - Add handleAuthTest endpoint that validates credentials without creating a device - Fix resetPasswordHTML to use {TOKEN} placeholder instead of %s - Remove fmt.Sprintf from admin dashboard (no format args needed)	2026-06-02 08:02:11 +08:00
mirivlad	852d6d373c	fix(sync): send LastSeenServerSeq from CLI push, report conflicts	2026-06-02 08:02:07 +08:00
mirivlad	3c7e9d1d56	fix(sync): add ClientSequence and LastSeenServerSeq to Op struct and Push - Add ClientSequence and LastSeenServerSeq fields to sync.Op struct - Fix Client.Push() to copy these fields to PushOp - Add GetDeviceID() method to sync.Service	2026-06-02 08:02:03 +08:00
mirivlad	87c8dfcbea	sync: overhaul sync system — device pairing, server_sequence, auto-sync, dashboards BREAKING: replace legacy API keys with device tokens via pairing flow. - Server: /api/client/pair, revoke, me endpoints; server_sequence + tombstones + idempotency - Desktop client: PairDevice, GetMe, RevokeCurrent; auto-sync loop every 60s - Config: device_token stored in separate file (0600), not config.yml - Client DB: last_pull_seq migration for incremental pull - Frontend (Svelte): settings modal with connect/disconnect/interval - User dashboard (/dashboard): device list with status, revoke with password - Admin dashboard (/admin/dashboard): devices table from /admin/api/devices - CLI (cmd/verstak): updated for ServerSequence/GetState changes - Fix: autoSyncLoop falls back to SQLite sync_state for server URL - Fix: SyncSetInterval preserves server_url/device_id from SQLite	2026-06-02 02:26:05 +08:00
mirivlad	7fe02fc8df	feat: forgot/reset password pages, login link, consistent error page helper, fix reset URL bug	2026-06-02 00:43:28 +08:00
mirivlad	b0d992b0d6	fix: rebuild GUI with login/password sync fields, make sync buttons more visible	2026-06-02 00:37:31 +08:00
mirivlad	e5860ca076	feat: styled registration/confirm pages with login link, consistent theme	2026-06-02 00:31:53 +08:00
mirivlad	daed8e0aba	feat: SMTP security selector (none/STARTTLS/TLS) instead of port-based detection	2026-06-02 00:18:04 +08:00
mirivlad	fa6f988368	fix: SMTP test send JSON instead of multipart FormData (ParseForm can't read multipart)	2026-06-02 00:14:52 +08:00
mirivlad	c8cdb089a6	feat: SMTP test button in admin modal — sends real test email, shows result	2026-06-02 00:12:41 +08:00
mirivlad	4afcc0e135	feat: add SMTP/logging — log.Printf for smtpSend errors, fix confirm URL logic	2026-06-02 00:10:04 +08:00
mirivlad	61928cf28e	fix: restore side-by-side layout for stat counters	2026-06-02 00:04:56 +08:00
mirivlad	04af88940b	refactor: SMTP form and health check into modals with toolbar buttons	2026-06-02 00:03:35 +08:00
mirivlad	015c8fdec7	docs: update sync server guide with user registration flow and full API	2026-06-02 00:00:53 +08:00
mirivlad	0f5c584c50	fix: admin dashboard format errors — use JS for stats, string concat for SMTP values, fix layout overlap	2026-06-01 23:59:15 +08:00
mirivlad	99e47fcb17	feat: add user registration web form at /register	2026-06-01 23:46:25 +08:00
mirivlad	0ef54c31f8	feat: user web GUI — login, dashboard with devices/keys, logout	2026-06-01 23:40:48 +08:00
mirivlad	b3662d4876	test: update smoke test for user auth flow	2026-06-01 23:36:38 +08:00
mirivlad	f8dc436709	feat: client auth — login/password flow, auto device reg, sync interval + improved sync UI	2026-06-01 23:36:19 +08:00
mirivlad	241a9d8c06	feat: user registration, email confirmation, login, device management + SMTP config UI in admin panel	2026-06-01 23:33:58 +08:00
mirivlad	5db3da3618	fix: protect device register with admin auth; improve admin UI (full API key, copy button, styling)	2026-06-01 23:22:19 +08:00
mirivlad	e828ebd44e	docs: add sync server installation and usage guide	2026-06-01 23:13:59 +08:00
mirivlad	84c0bcbcab	test: add E2E smoke test for sync	2026-06-01 23:07:24 +08:00
mirivlad	a1a50863c5	gui: add sync settings panel in Svelte	2026-06-01 22:58:12 +08:00
mirivlad	1abe8c4fa0	cli: add sync push/pull/status commands	2026-06-01 22:56:05 +08:00
mirivlad	5b2cec5bcc	sync: fix SyncStatus binding — remove invalid type assertion, use config for device ID	2026-06-01 22:55:50 +08:00
mirivlad	1a20edac44	feat: sync — client ops recording in core services - internal/core/sync/: Service, Client, Blob packages - RecordOp creates sync_ops entries for all mutations - Client for push/pull/blob HTTP to server - Blob SHA-256 hashing and local storage - Wired into app.go alongside activity recording - Device ID from config or fallback	2026-06-01 22:54:23 +08:00
mirivlad	ad684eb118	feat: sync — push/pull API endpoints - POST /api/v1/sync/push — accepts ops, assigns revisions, returns accepted list - POST /api/v1/sync/pull — returns ops since given revision with server_revision	2026-06-01 22:51:30 +08:00
mirivlad	10c6d06e38	feat: sync — blob upload/download with SHA-256 storage - POST /api/v1/blobs/ — multipart upload, stored as blobs/ab/cd/sha256 - GET /api/v1/blobs/{sha256} — download by hash - server_blobs table for tracking stored blobs	2026-06-01 22:50:38 +08:00
mirivlad	ec928e3be6	feat: sync — systemd unit and install.sh for server deployment - verstak-server.service — systemd unit with sandboxing, configurable port via env - install.sh — creates user, installs binary, sets up admin, enables service Usage: sudo ./install.sh --admin-user admin --admin-pass secret [--port 47732]	2026-06-01 22:49:40 +08:00
mirivlad	c5e0060fee	chore: add verstak-server to gitignore	2026-06-01 22:49:10 +08:00
mirivlad	834b5ef0d4	feat: sync — server skeleton with health, admin login/dashboard, device registration - cmd/verstak-server/main.go — flags: --port, --data, --admin-user, --admin-pass - Server DB schema: server_devices, server_revisions, server_ops - Health endpoint GET /api/v1/health - Admin login page + session cookie auth - Admin dashboard with device stats and API key management - Device registration POST /api/v1/device/register - Stub push/pull/blob endpoints	2026-06-01 22:49:02 +08:00
mirivlad	4145b4d74a	feat: sync — migration 010 for sync_ops and sync_state tables	2026-06-01 22:45:12 +08:00
mirivlad	edc708a106	chore: add spaces/ to gitignore (vault data)	2026-06-01 22:17:39 +08:00
mirivlad	ee708d30bb	docs: sync documentation with current codebase state - Architecture: Wails v3→v2, removed TUI/sync/security from diagram - UI/UX: layout updated to sidebar+header, sync marked future - Roadmap: Wails v3→v2 migration note, milestones 10+ PAUSED - MVP Checklist: mark implemented features as done - PLAN.md: bindings list synced, repo structure fixed, progress updated - Medium-term steps documented (sync, scanner, TUI, Lua, etc.)	2026-06-01 22:17:29 +08:00
mirivlad	305158ecc6	test: MVP smoke test for core workflow Covers: vault init, node tree, notes CRUD, file import, actions CRUD, worklog, search (FTS5 optional), reopen persistence, soft delete, worklog report	2026-06-01 22:17:25 +08:00
mirivlad	996322f3a9	gui: actions CRUD + FromTemplate bindings + UI - CreateAction / DeleteAction Wails bindings - FromTemplate / ListTemplates bindings with recursive tree creation - Plugin manager stored in App struct for template access - Action creation modal (title, kind, data) in Overview and Actions tabs - Delete action button on action cards - Template selector in new-node dialog	2026-06-01 22:17:18 +08:00
mirivlad	a098cf721c	add missing Wails bindings for ListActivityFeed, ListActivityByNode, CountActivityByNode	2026-06-01 22:00:58 +08:00
mirivlad	3672e3133b	activity: global feed, per-case log, sidebar section, today UX - migration 009: target_type, target_id, target_path columns - new Event fields: TargetType, TargetID, TargetPath - ListActivityFeed (paginated global), ListActivityByNode (per-case) - all Record() callsites pass target info - frontend: Активность sidebar section with chronological feed - per-case Активность tab with real data (was placeholder) - today events: clickable, target-type badges, event counts	2026-06-01 02:53:56 +08:00
mirivlad	5a1c4c6d7f	simplify ListTodayView: remove fallback table queries, pure activity_events + ListTodayNodes TodayView now uses only activity_events (source of truth) + ListTodayNodes (ensure changed cases appear). Removed direct queries to nodes (notes) and files tables — those will come from activity_events going forward.	2026-06-01 02:45:55 +08:00
mirivlad	08c9d5dbea	gitignore: fix verstak-gui pattern to root-only, add .verstak/	2026-06-01 02:16:25 +08:00
mirivlad	c74fa3ad43	today dashboard: activity_events, ListTodayView with events timeline, frontend TodayDashboard separated from sidebar	2026-06-01 02:16:13 +08:00
mirivlad	69891e395c	Today view and Inbox section: dynamic query, not stored sections - ListTodayView() on backend: queries nodes created or updated today using local timezone day boundaries - todayBoundaries() helper returns start/end of current day in RFC3339 - Section validation: Create() rejects today and inbox as node sections - validSections moved from repository.go to types.go with IsValidSection and IsServiceSection helpers - Frontend selectSection('today') calls ListTodayView instead of ListNodesBySection('today') - FAB (create node) hidden in today and inbox sections - CreateNode in app.go guarded against today/inbox sections - types.go: today/inbox defined as service sections (sidebar only)	2026-06-01 01:39:02 +08:00
mirivlad	a4ae22c445	File manager: selection, keyboard shortcuts, rename modal, security, localization - Selection model: click=select, dblclick=open, Ctrl+click toggle, Shift+click range select, Ctrl+A, Esc to clear - Keyboard shortcuts: Enter, Ctrl+Enter, F2, Backspace (navigate up), Delete/Backspace (delete with confirm) - Rename modal replaces prompt() with validation via backend ValidateName - Context menu: Open, Open External, Show in Folder, Rename, Duplicate, Copy, Cut, Delete — all with SVG icons and Russian labels - Backend security: vaultPath/absPathSafe helpers prevent path traversal, validateName rejects .. / \ null bytes empty overlong names - MoveNode auto-renames on name conflict (copy style) - Duplicate uses (copy) (copy 2) suffix pattern - Russian localization: all file type labels, preview messages, tooltips - FilePreviewModal: fixed broken {/if} tag	2026-06-01 01:35:45 +08:00
mirivlad	2487d3bbaa	Files tab: multi-selection, drag-and-drop, keyboard shortcuts, custom confirm modal, SVG icons	2026-06-01 01:16:51 +08:00
mirivlad	645d8878cc	gui: complete Wails v2 vertical MVP — fixes, search, polished UI Backend fixes: - Wire search service in App struct, implement Search() bindings - Fix OpenFile to use files.Service.Open() instead of stub - Fix OpenFolder to open spaces/<slug>/ instead of vault root - Remove unused imports and dead code in app.go Frontend fixes: - Add missing Svelte plugin to vite.config.js (blocking build error) - Fix optional catch binding for compatibility - Fix select dropdown rendering on Linux (appearance: none + custom arrow) - Switch api/verstak.js to use generated Wails v2 bindings - Include hand-written wailsjs bindings in repository - Add build.sh to repository Build: cd frontend && npm run build rm -rf cmd/verstak-gui/frontend-dist && cp -r frontend/dist cmd/verstak-gui/frontend-dist go build -tags 'gui production webkit2_41' -o verstak-gui ./cmd/verstak-gui	2026-05-31 23:48:38 +08:00
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