fix: Agent beads now reference shared role beads

crew_add.go: Use gt-crew-role instead of per-instance role bead
polecat/manager.go: Add RoleBead field pointing to gt-polecat-role

Per agent-as-bead design, role beads are shared class definitions.
Each agent bead references its role via the role_bead field/slot.

Fixes gt-ne9he

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/cmd/crew_add.go

@@ -88,7 +88,7 @@ func runCrewAdd(cmd *cobra.Command, args []string) error {
 			RoleType:   "crew",
 			Rig:        rigName,
 			AgentState: "idle",
-			RoleBead:   crewID + "-role",
+			RoleBead:   "gt-crew-role",
 		}
 		desc := fmt.Sprintf("Crew worker %s in %s - human-managed persistent workspace.", name, rigName)
 		if _, err := bd.CreateAgentBead(crewID, desc, fields); err != nil {

internal/polecat/manager.go

@@ -221,6 +221,7 @@ func (m *Manager) Add(name string) (*Polecat, error) {
 		RoleType:   "polecat",
 		Rig:        m.rig.Name,
 		AgentState: "spawning",
+		RoleBead:   "gt-polecat-role",
 	})
 	if err != nil {
 		// Non-fatal - log warning but continue
@@ -427,6 +428,7 @@ func (m *Manager) Recreate(name string, force bool) (*Polecat, error) {
 		RoleType:   "polecat",
 		Rig:        m.rig.Name,
 		AgentState: "spawning",
+		RoleBead:   "gt-polecat-role",
 	})
 	if err != nil {
 		fmt.Printf("Warning: could not create agent bead: %v\n", err)