Add MCP server and enhance AI content tools

Implement self-hosted MCP server for admin actions, update AI generation tools in admin dashboard, and refine mobile app stores and components.

apps/supabase/migrations/20260111000000_add_required_props_to_questions.sql

@@ -0,0 +1,5 @@
+ALTER TABLE public.questions
+ADD COLUMN required_props TEXT[];
+
+COMMENT ON COLUMN public.questions.required_props IS
+'Array of props/accessories required to perform the activity.';