Implement Jade CLI v1.0 MVP

Complete implementation of note management CLI with all core features:

Commands:
- add: Create new notes in $EDITOR with auto-generated filenames
- list: Display all notes with titles, paths, and tags
- search: Full-text search via ripgrep, tag-based filtering
- tags: List all tags with occurrence counts
- edit: Fuzzy search and edit notes by title
- rm: Move notes to trash with confirmation prompt

Features:
- Automatic depository structure initialization (.jade/trash/)
- Configurable tag prefix (default '+')
- Parse title from first # heading (filename fallback)
- Extract tags anywhere in content
- Parse both [[wiki-links]] and [markdown](links)
- Trash system with timestamps to prevent conflicts

Technical:
- Global config at ~/.config/jade/config.yml
- Per-depository settings support
- Ripgrep integration for fast search
- $EDITOR integration for note editing
- Comprehensive README with usage examples

jade-depo/cmd/edit.go

@@ -0,0 +1,86 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"git.jnss.me/joakim/jadedepo/internal/engine"
+	"github.com/spf13/cobra"
+)
+
+var (
+	editCmd = &cobra.Command{
+		Use:   "edit [title]",
+		Short: "Edit a note by searching for its title",
+		Args:  cobra.MinimumNArgs(1),
+		Run:   editNote,
+	}
+)
+
+func init() {
+	rootCmd.AddCommand(editCmd)
+}
+
+func editNote(cmd *cobra.Command, args []string) {
+	jd, err := engine.GetInstance()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Search for note by title
+	searchTitle := strings.Join(args, " ")
+	matches, err := jd.FindNoteByTitle(searchTitle)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error searching for note: %v\n", err)
+		os.Exit(1)
+	}
+
+	if len(matches) == 0 {
+		fmt.Fprintf(os.Stderr, "No notes found matching '%s'\n", searchTitle)
+		os.Exit(1)
+	}
+
+	var noteToEdit *engine.Note
+
+	if len(matches) == 1 {
+		noteToEdit = matches[0]
+	} else {
+		// Multiple matches - show options
+		fmt.Printf("Multiple notes found matching '%s':\n\n", searchTitle)
+		for i, note := range matches {
+			fmt.Printf("  %d. %s (%s)\n", i+1, note.Title, note.Path)
+		}
+		fmt.Print("\nSelect note number (1-", len(matches), "): ")
+
+		var selection int
+		_, err := fmt.Scanf("%d", &selection)
+		if err != nil || selection < 1 || selection > len(matches) {
+			fmt.Fprintf(os.Stderr, "Invalid selection\n")
+			os.Exit(1)
+		}
+		noteToEdit = matches[selection-1]
+	}
+
+	// Open note in editor
+	notePath := filepath.Join(jd.Config.DepoPath, noteToEdit.Path)
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		editor = "vi" // fallback
+	}
+
+	editorCmd := exec.Command(editor, notePath)
+	editorCmd.Stdin = os.Stdin
+	editorCmd.Stdout = os.Stdout
+	editorCmd.Stderr = os.Stderr
+
+	if err := editorCmd.Run(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error opening editor: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Edited note: %s\n", noteToEdit.Title)
+}