Remove default crew member creation from rig add

- Rig add now creates empty crew/ directory with README
- Crew members must be added explicitly with 'gt crew add <name>'
- Removed --crew flag from rig add command
- Updated help text and output to reflect new behavior

This gives users control over crew member names rather than defaulting to 'max'.

internal/cmd/rig.go

@@ -48,7 +48,7 @@ This creates a rig container with:
   - plugins/              Rig-level plugin directory
   - refinery/rig/         Canonical main clone
   - mayor/rig/            Mayor's working clone
-  - crew/max/             Default human workspace
+  - crew/                 Empty crew directory (add members with 'gt crew add')
   - witness/              Witness agent directory
   - polecats/             Worker directory (empty)
 
@@ -155,7 +155,6 @@ Examples:
 // Flags
 var (
 	rigAddPrefix       string
-	rigAddCrew         string
 	rigResetHandoff    bool
 	rigResetMail       bool
 	rigResetStale      bool
@@ -176,7 +175,6 @@ func init() {
 	rigCmd.AddCommand(rigShutdownCmd)
 
 	rigAddCmd.Flags().StringVar(&rigAddPrefix, "prefix", "", "Beads issue prefix (default: derived from name)")
-	rigAddCmd.Flags().StringVar(&rigAddCrew, "crew", "", "Crew workspace name (default: from town config or 'max')")
 
 	rigResetCmd.Flags().BoolVar(&rigResetHandoff, "handoff", false, "Clear handoff content")
 	rigResetCmd.Flags().BoolVar(&rigResetMail, "mail", false, "Clear stale mail messages")
@@ -200,18 +198,6 @@ func runRigAdd(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("not in a Gas Town workspace: %w", err)
 	}
 
-	// Resolve crew name: --crew flag > town config > default constant
-	crewName := rigAddCrew
-	if crewName == "" {
-		// Try loading MayorConfig for default_crew_name
-		mayorConfigPath := filepath.Join(townRoot, "mayor", "config.json")
-		if mayorCfg, err := config.LoadMayorConfig(mayorConfigPath); err == nil && mayorCfg.DefaultCrewName != "" {
-			crewName = mayorCfg.DefaultCrewName
-		} else {
-			crewName = config.DefaultCrewName
-		}
-	}
-
 	// Load rigs config
 	rigsPath := filepath.Join(townRoot, "mayor", "rigs.json")
 	rigsConfig, err := config.LoadRigsConfig(rigsPath)
@@ -237,7 +223,6 @@ func runRigAdd(cmd *cobra.Command, args []string) error {
 		Name:        name,
 		GitURL:      gitURL,
 		BeadsPrefix: rigAddPrefix,
-		CrewName:    crewName,
 	})
 	if err != nil {
 		return fmt.Errorf("adding rig: %w", err)
@@ -277,13 +262,13 @@ func runRigAdd(cmd *cobra.Command, args []string) error {
 	fmt.Printf("  ├── plugins/          (rig-level plugins)\n")
 	fmt.Printf("  ├── mayor/rig/        (clone: %s)\n", defaultBranch)
 	fmt.Printf("  ├── refinery/rig/     (worktree: %s, sees polecat branches)\n", defaultBranch)
-	fmt.Printf("  ├── crew/%s/        (your workspace)\n", crewName)
+	fmt.Printf("  ├── crew/             (empty - add crew with 'gt crew add')\n")
 	fmt.Printf("  ├── witness/\n")
 	fmt.Printf("  └── polecats/\n")
 
 	fmt.Printf("\nNext steps:\n")
-	fmt.Printf("  cd %s/crew/%s    # Work in your clone\n", filepath.Join(townRoot, name), crewName)
-	fmt.Printf("  bd ready                 # See available work\n")
+	fmt.Printf("  gt crew add <name> %s   # Create your workspace\n", name)
+	fmt.Printf("  cd %s/crew/<name>       # Work in your clone\n", filepath.Join(townRoot, name))
 
 	return nil
 }