Add drag-and-drop reordering to categories page

- Replace up/down chevron buttons with @dnd-kit drag handles
- Update pack generation and question review commands
- Fix MCP bridge and add supabase package.json for Docker

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

packages/shared/src/types/index.ts

@@ -42,6 +42,7 @@ export interface Question {
     target_user_genders?: string[] | null;
     required_props?: string[] | null;
     created_at: string;
+    deleted_at?: string | null;
 }
 
 // User's answer type