feat: Notes core service + Notes API + router auto-detect notes context

- Add internal/core/notes/ service (Service, Layout, Normalize, tests)
- Register verstak/core/notes/v1 capability
- Inject NotesService into App, expose 8 Notes API endpoints
  (CreateNote, RenameNote, ReadNote, SaveNote, EnsureOverview,
   ListNotes, SearchNotes, NormalizeNoteTitle)
- Router: auto-detect Notes context via path (IsInsideNotes)
- PluginCard: show workspaceItems contribution count
- Regenerate Wails bindings (App.d.ts, App.js, models.ts with notes.NoteInfo)
- Fix .gitignore pattern for e2e-results/

internal/core/workbench/router.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/verstak/verstak-desktop/internal/core/contribution"
+	"github.com/verstak/verstak-desktop/internal/core/notes"
 	"github.com/verstak/verstak-desktop/internal/core/plugin"
 )
 
@@ -233,7 +234,9 @@ func (r *Router) preferenceFor(request OpenResourceRequest) string {
 func resourceContextName(request OpenResourceRequest) string {
 	ext := strings.ToLower(request.Extension)
 	if ext == ".md" || ext == ".markdown" {
-		if request.Context.NotesMode || request.Context.IsInsideNotesFolder {
+		// Auto-detect Notes context: either explicitly set in request context
+		// or path-based detection using the canonical Notes/ folder layout.
+		if request.Context.NotesMode || request.Context.IsInsideNotesFolder || notes.IsInsideNotes(request.Path) {
 			return ContextNotesMarkdown
 		}
 		return ContextGenericMarkdown

internal/core/workbench/routing_test.go

@@ -403,7 +403,7 @@ func TestDetermineContextName(t *testing.T) {
 			want:    ContextGenericMarkdown,
 		},
 		{
-			name: "notes markdown",
+			name: "notes markdown with explicit context",
 			request: OpenResourceRequest{
 				Kind: "vault-file",
 				Path: "Notes/Overview.md",
@@ -414,6 +414,30 @@ func TestDetermineContextName(t *testing.T) {
 			},
 			want: ContextNotesMarkdown,
 		},
+		{
+			name: "notes markdown auto-detected from path",
+			request: OpenResourceRequest{
+				Kind: "vault-file",
+				Path: "Workspace/Notes/MyNote.md",
+			},
+			want: ContextNotesMarkdown,
+		},
+		{
+			name: "notes overview auto-detected",
+			request: OpenResourceRequest{
+				Kind: "vault-file",
+				Path: "Notes/Overview.md",
+			},
+			want: ContextNotesMarkdown,
+		},
+		{
+			name: "non-notes markdown stays generic",
+			request: OpenResourceRequest{
+				Kind: "vault-file",
+				Path: "Workspace/Files/readme.md",
+			},
+			want: ContextGenericMarkdown,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {