Add inverse_of tracking and admin question management

- Add inverse_of column support for question pair linking
- Enhance admin questions page with bulk operations
- Add DB migrations for inverse_of and FK indexes
- Update pack generator docs for inverse linking
- Improve Docker configs for admin app

apps/supabase/migrations/20260111100000_add_inverse_of_to_questions.sql

@@ -0,0 +1,45 @@
+-- Add inverse_of column to questions table
+-- This allows tracking when questions are inverses of each other
+-- (e.g., "Do you want to give X?" and "Do you want to receive X?")
+-- The "primary" question has inverse_of = NULL
+-- The "secondary" (inverse) question points to its primary
+
+-- Add the column
+ALTER TABLE questions
+ADD COLUMN inverse_of UUID REFERENCES questions(id) ON DELETE SET NULL;
+
+-- Add a comment to document the column
+COMMENT ON COLUMN questions.inverse_of IS 'References the primary question that this question is an inverse of. Used to track question pairs (e.g., give/receive). Primary questions have inverse_of = NULL, secondary questions point to their primary.';
+
+-- Create an index for efficient lookups
+CREATE INDEX idx_questions_inverse_of ON questions(inverse_of) WHERE inverse_of IS NOT NULL;
+
+-- Create a function to get unique question count for a pack
+-- Unique count = questions that are NOT inverses of another question (i.e., inverse_of IS NULL)
+CREATE OR REPLACE FUNCTION get_pack_unique_question_count(pack_uuid UUID)
+RETURNS INTEGER
+LANGUAGE SQL
+STABLE
+AS $$
+  SELECT COUNT(*)::INTEGER
+  FROM questions
+  WHERE pack_id = pack_uuid
+    AND inverse_of IS NULL
+    AND deleted_at IS NULL;
+$$;
+
+-- Grant execute permission to authenticated users
+GRANT EXECUTE ON FUNCTION get_pack_unique_question_count(UUID) TO authenticated;
+
+-- Create a view to get pack stats including both total and unique counts
+CREATE OR REPLACE VIEW pack_question_stats AS
+SELECT
+  pack_id,
+  COUNT(*) FILTER (WHERE deleted_at IS NULL) AS total_questions,
+  COUNT(*) FILTER (WHERE inverse_of IS NULL AND deleted_at IS NULL) AS unique_questions,
+  COUNT(*) FILTER (WHERE inverse_of IS NOT NULL AND deleted_at IS NULL) AS inverse_questions
+FROM questions
+GROUP BY pack_id;
+
+-- Grant select on the view
+GRANT SELECT ON pack_question_stats TO authenticated;

apps/supabase/migrations/20260111120000_add_fk_indexes_drop_unused.sql

@@ -0,0 +1,42 @@
+-- Add indexes for unindexed foreign keys
+-- These improve JOIN and DELETE performance
+
+CREATE INDEX IF NOT EXISTS idx_admin_users_created_by ON public.admin_users(created_by);
+CREATE INDEX IF NOT EXISTS idx_ai_config_updated_by ON public.ai_config(updated_by);
+CREATE INDEX IF NOT EXISTS idx_app_config_updated_by ON public.app_config(updated_by);
+CREATE INDEX IF NOT EXISTS idx_code_redemptions_user_id ON public.code_redemptions(user_id);
+CREATE INDEX IF NOT EXISTS idx_couple_packs_pack_id ON public.couple_packs(pack_id);
+CREATE INDEX IF NOT EXISTS idx_dare_messages_sender_id ON public.dare_messages(sender_id);
+CREATE INDEX IF NOT EXISTS idx_matches_question_id ON public.matches(question_id);
+CREATE INDEX IF NOT EXISTS idx_message_reports_reporter_id ON public.message_reports(reporter_id);
+CREATE INDEX IF NOT EXISTS idx_message_reports_reviewed_by ON public.message_reports(reviewed_by);
+CREATE INDEX IF NOT EXISTS idx_messages_match_id ON public.messages(match_id);
+CREATE INDEX IF NOT EXISTS idx_messages_user_id ON public.messages(user_id);
+CREATE INDEX IF NOT EXISTS idx_redemption_codes_created_by ON public.redemption_codes(created_by);
+CREATE INDEX IF NOT EXISTS idx_responses_question_id ON public.responses(question_id);
+CREATE INDEX IF NOT EXISTS idx_sent_dares_dare_id ON public.sent_dares(dare_id);
+
+-- Drop unused indexes (identified by Supabase advisor as never used)
+-- These are just consuming storage with no benefit
+
+DROP INDEX IF EXISTS public.idx_feedback_type;
+DROP INDEX IF EXISTS public.idx_feedback_status;
+DROP INDEX IF EXISTS public.idx_subscriptions_expires_at;
+DROP INDEX IF EXISTS public.idx_webhook_events_event_id;
+DROP INDEX IF EXISTS public.idx_audit_logs_record_id;
+DROP INDEX IF EXISTS public.idx_audit_logs_action;
+DROP INDEX IF EXISTS public.idx_pack_topics_topic_id;
+DROP INDEX IF EXISTS public.idx_feature_interests_feature_name;
+DROP INDEX IF EXISTS public.idx_profiles_couple_id_public_key;
+DROP INDEX IF EXISTS public.idx_messages_deleted_at;
+DROP INDEX IF EXISTS public.idx_message_reports_created;
+DROP INDEX IF EXISTS public.idx_dare_packs_visibility;
+DROP INDEX IF EXISTS public.idx_dares_pack_id;
+DROP INDEX IF EXISTS public.idx_dares_intensity;
+DROP INDEX IF EXISTS public.idx_sent_dares_sender_id;
+DROP INDEX IF EXISTS public.idx_sent_dares_recipient_id;
+DROP INDEX IF EXISTS public.idx_sent_dares_status;
+DROP INDEX IF EXISTS public.idx_sent_dares_expires_at;
+DROP INDEX IF EXISTS public.idx_dare_messages_sent_dare_id;
+DROP INDEX IF EXISTS public.idx_dare_messages_created_at;
+DROP INDEX IF EXISTS public.idx_questions_deleted_at;