Update all prompts to use gt hook instead of gt mol status

- Role templates (crew, polecat, mayor, deacon, witness, refinery)
- prime.go startup protocol messages
- Documentation (propulsion, reference, molecules, wisp architecture)
- Session hints and sling prompts
- Formula template instructions
- CLAUDE.md

The hook is the user-facing concept, molecules are implementation details.
Agents should use `gt hook` to check what work is assigned to them.

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

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

internal/cmd/molecule_attach_from_mail.go

@@ -123,7 +123,7 @@ func runMoleculeAttachFromMail(cmd *cobra.Command, args []string) error {
 	if attachment != nil && attachment.AttachedAt != "" {
 		fmt.Printf("  Attached at: %s\n", attachment.AttachedAt)
 	}
-	fmt.Printf("\n%s Run 'gt mol status' to see progress\n", style.Dim.Render("Hint:"))
+	fmt.Printf("\n%s Run 'gt hook' to see progress\n", style.Dim.Render("Hint:"))
 
 	return nil
 }