Cloud Lu SQL Trigger (auto-routing migration)

{
  "code": "## Cloud Lu SQL Trigger — ALREADY IMPLEMENTED\n\nMigration: `supabase/migrations/20260226000001_cloud_lu_auto_route.sql`\n\n### Implementation\n- `pg_net` extension for async HTTP from PostgreSQL\n- Trigger function `notify_cloud_lu_router()`: fires AFTER INSERT on `lu_sibling_messages`\n- Filters: only messages where `to_instance = 'Cloud Lu'` AND `message_type IS NULL OR 'message'` (avoids re-routing already-routed messages)\n- POSTs to Edge Function `cloud-lu-router` with `row_to_json(NEW)` payload\n- Uses `SECURITY DEFINER` for service role key access\n- Idempotent: `DROP TRIGGER IF EXISTS` before `CREATE TRIGGER`\n- Diagnostic migration also exists: `20260226000003_diagnose_pgnet.sql`\n\nAll acceptance criteria met.",
  "content": "## Cloud Lu SQL Trigger — ALREADY IMPLEMENTED\n\nMigration: `supabase/migrations/20260226000001_cloud_lu_auto_route.sql`\n\n### Implementation\n- `pg_net` extension for async HTTP from PostgreSQL\n- Trigger function `notify_cloud_lu_router()`: fires AFTER INSERT on `lu_sibling_messages`\n- Filters: only messages where `to_instance = 'Cloud Lu'` AND `message_type IS NULL OR 'message'` (avoids re-routing already-routed messages)\n- POSTs to Edge Function `cloud-lu-router` with `row_to_json(NEW)` payload\n- Uses `SECURITY DEFINER` for service role key access\n- Idempotent: `DROP TRIGGER IF EXISTS` before `CREATE TRIGGER`\n- Diagnostic migration also exists: `20260226000003_diagnose_pgnet.sql`\n\nAll acceptance criteria met."
}