fix: validate bundled plugin requirements

internal/api/app.go

@@ -1064,30 +1064,23 @@ func (a *App) ReloadPlugins() (int, string) {
 	// Unregister all non-core capabilities
 	a.capRegistry.UnregisterAll()
 
-	// Re-register core capabilities
-	coreCaps := []string{
-		"verstak/core/plugin-manager/v1",
-		"verstak/core/capability-registry/v1",
-		"verstak/core/contribution-registry/v1",
-		"verstak/core/permissions/v1",
-		"verstak/core/events/v1",
-		"verstak/core/files/v1",
-		"verstak/core/workbench/v1",
-	}
-	if err := a.capRegistry.Register("verstak-desktop", coreCaps); err != nil {
+	// Re-register the same core capabilities as initial startup. Keeping this
+	// list in the capability package prevents a plugin reload from dropping a
+	// required capability such as native notifications.
+	if err := a.capRegistry.Register(capability.CorePluginID, capability.CorePlatformCapabilities()); err != nil {
 		log.Printf("[api] ReloadPlugins: failed to re-register core capabilities: %v", err)
 	}
 
 	// Re-register vault capability if vault is open
 	if a.vault != nil && a.vault.GetVaultStatus() == vault.StatusOpen {
-		if err := a.capRegistry.Register("verstak-desktop", []string{"verstak/core/vault/v1"}); err != nil {
+		if err := a.capRegistry.Register(capability.CorePluginID, []string{"verstak/core/vault/v1"}); err != nil {
 			log.Printf("[api] ReloadPlugins: failed to re-register vault capability: %v", err)
 		}
 	}
 
 	// Re-register workspace capability if workspace is initialized
 	if a.workspace != nil && a.workspace.IsInitialized() {
-		if err := a.capRegistry.Register("verstak-desktop", []string{"verstak/core/workspace/v1"}); err != nil {
+		if err := a.capRegistry.Register(capability.CorePluginID, []string{"verstak/core/workspace/v1"}); err != nil {
 			log.Printf("[api] ReloadPlugins: failed to re-register workspace capability: %v", err)
 		}
 	}

internal/api/app_test.go

@@ -225,6 +225,19 @@ func TestReplaceAndClearPluginNotificationsStayWithinPluginNamespace(t *testing.
 	}
 }
 
+func TestReloadPluginsRestoresNotificationCoreCapability(t *testing.T) {
+	app := &App{
+		capRegistry:     capability.NewRegistry(),
+		contribRegistry: contribution.NewRegistry(),
+	}
+
+	app.ReloadPlugins()
+
+	if !app.capRegistry.Has("verstak/core/notifications/v1") {
+		t.Fatal("ReloadPlugins did not restore verstak/core/notifications/v1")
+	}
+}
+
 func TestDomReadyInitializesNotificationsBeforeScheduler(t *testing.T) {
 	oldInitialize := initializeNativeNotifications
 	defer func() { initializeNativeNotifications = oldInitialize }()

internal/core/capability/platform.go

@@ -0,0 +1,20 @@
+package capability
+
+const CorePluginID = "verstak-desktop"
+
+var platformCapabilities = []string{
+	"verstak/core/plugin-manager/v1",
+	"verstak/core/capability-registry/v1",
+	"verstak/core/contribution-registry/v1",
+	"verstak/core/permissions/v1",
+	"verstak/core/events/v1",
+	"verstak/core/files/v1",
+	"verstak/core/workbench/v1",
+	"verstak/core/notifications/v1",
+}
+
+// CorePlatformCapabilities returns a copy of the capabilities registered by
+// the desktop before dynamic plugins are resolved.
+func CorePlatformCapabilities() []string {
+	return append([]string(nil), platformCapabilities...)
+}

internal/core/plugin/lifecycle_test.go

@@ -3,25 +3,16 @@ package plugin
 import (
 	"os"
 	"path/filepath"
+	"runtime"
 	"testing"
 
 	"github.com/verstak/verstak-desktop/internal/core/capability"
 )
 
-// coreCapabilities lists the 5 core capabilities that the platform registers
-// before any plugins are loaded.
-var coreCapabilities = []string{
-	"verstak/core/plugin-manager/v1",
-	"verstak/core/capability-registry/v1",
-	"verstak/core/contribution-registry/v1",
-	"verstak/core/permissions/v1",
-	"verstak/core/events/v1",
-}
-
-// registerCoreCapabilities registers the 5 core capabilities on a registry.
+// registerCoreCapabilities registers the desktop's core capabilities on a registry.
 func registerCoreCapabilities(t *testing.T, reg *capability.Registry) {
 	t.Helper()
-	if err := reg.Register("verstak-core", coreCapabilities); err != nil {
+	if err := reg.Register(capability.CorePluginID, capability.CorePlatformCapabilities()); err != nil {
 		t.Fatalf("failed to register core capabilities: %v", err)
 	}
 }
@@ -76,6 +67,43 @@ func TestLifecycle_CoreCapabilitiesRegisteredBeforePlugins(t *testing.T) {
 	}
 }
 
+func TestBundledOfficialPluginRequirementsResolve(t *testing.T) {
+	plugins, errs := DiscoverPlugins([]string{bundledPluginDir(t)})
+	if len(errs) > 0 {
+		t.Fatalf("discover bundled plugins: %v", errs)
+	}
+
+	reg := capability.NewRegistry()
+	registerCoreCapabilities(t, reg)
+	ResolveLifecycle(plugins, reg, nil)
+
+	foundTodo := false
+	for _, loaded := range plugins {
+		if loaded.Manifest.ID == "verstak.todo" {
+			foundTodo = true
+		}
+		if loaded.Status == StatusMissingRequiredCapability {
+			t.Fatalf("bundled plugin %q is missing required capabilities: %s", loaded.Manifest.ID, loaded.Error)
+		}
+	}
+
+	if !foundTodo {
+		t.Fatal("bundled Todo manifest was not discovered")
+	}
+}
+
+func bundledPluginDir(t *testing.T) string {
+	t.Helper()
+	if configured := os.Getenv("VERSTAK_RELEASE_PLUGIN_DIR"); configured != "" {
+		return configured
+	}
+	_, sourceFile, _, ok := runtime.Caller(0)
+	if !ok {
+		t.Fatal("could not resolve lifecycle test path")
+	}
+	return filepath.Join(filepath.Dir(sourceFile), "../../../plugins")
+}
+
 // TestLifecycle_MissingRequiredCapability verifies that when the required
 // capability is NOT registered, CheckRequired reports it as missing and the
 // plugin status should be set to StatusMissingRequiredCapability.