Add multi-depository support with global config

- Implement global CLI config at ~/.config/jade/config.yml
- Add jade depo commands (add, list, remove, set-default)
- Support depository short names and context-aware detection
- Remove tag_prefix config, hardcode + syntax for consistency
- Update depository resolution: flag -> context -> default
- Auto-initialize .jade/ directory structure when adding depos
- Update documentation with new multi-depository workflow

jade-depo/cmd/root.go

@@ -17,21 +17,27 @@ var (
 )
 
 var (
-	cfgPath  string
-	depoPath string
+	depoInput string
 )
 
 func init() {
-	cobra.OnInitialize(func() {
-		if _, err := engine.Init(cfgPath, depoPath); err != nil {
-			fmt.Fprintf(os.Stderr, "Error initializing configuration: %v\n", err)
-			os.Exit(1)
-		}
-	})
+	cobra.OnInitialize(initializeIfNeeded)
+	rootCmd.PersistentFlags().StringVar(&depoInput, "depo", "", "Depository name or path")
+}
 
-	rootCmd.PersistentFlags().StringVar(&cfgPath, "config", "", "Configuration file path. Default <depo>/.jade/config.yml")
-	rootCmd.PersistentFlags().StringVar(&depoPath, "depo", "", "Depository path. Default $HOME/jade-depository")
+// initializeIfNeeded initializes the depository only for commands that need it
+func initializeIfNeeded() {
+	// Skip initialization for depo management commands
+	cmd := os.Args
+	if len(cmd) > 1 && cmd[1] == "depo" {
+		return
+	}
 
+	// Initialize for all other commands
+	if _, err := engine.Init(depoInput); err != nil {
+		fmt.Fprintf(os.Stderr, "Error initializing configuration: %v\n", err)
+		os.Exit(1)
+	}
 }
 
 func openDepository(cmd *cobra.Command, args []string) {