feat: add SQL query tool, platform debug, loyalty settings, and multi-module improvements

- Add admin SQL query tool with saved queries, schema explorer presets,
  and collapsible category sections (dev_tools module)
- Add platform debug tool for admin diagnostics
- Add loyalty settings page with owner-only access control
- Fix loyalty settings owner check (use currentUser instead of window.__userData)
- Replace HTTPException with AuthorizationException in loyalty routes
- Expand loyalty module with PIN service, Apple Wallet, program management
- Improve store login with platform detection and multi-platform support
- Update billing feature gates and subscription services
- Add store platform sync improvements and remove is_primary column
- Add unit tests for loyalty (PIN, points, stamps, program services)
- Update i18n translations across dev_tools locales

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/seed/seed_demo.py

@@ -941,7 +941,6 @@ def create_demo_stores(
                 store_id=store.id,
                 platform_id=platform_id,
                 is_active=True,
-                is_primary=(i == 0),
                 custom_subdomain=custom_sub,
             )
             db.add(sp)
@@ -1280,10 +1279,12 @@ def create_demo_store_content_pages(db: Session, stores: list[Store]) -> int:
     store_primary_platform: dict[int, int] = {}
     sp_rows = db.execute(
         select(StorePlatform.store_id, StorePlatform.platform_id)
-        .where(StorePlatform.is_primary == True)  # noqa: E712
+        .where(StorePlatform.is_active == True)  # noqa: E712
+        .order_by(StorePlatform.joined_at)
     ).all()
     for store_id, platform_id in sp_rows:
-        store_primary_platform[store_id] = platform_id
+        if store_id not in store_primary_platform:
+            store_primary_platform[store_id] = platform_id
 
     # Fallback: OMS platform ID
     oms_platform = db.execute(
@@ -1544,7 +1545,7 @@ def print_summary(db: Session):
         select(StorePlatform.store_id, Platform.code).join(
             Platform, Platform.id == StorePlatform.platform_id
         ).where(StorePlatform.is_active == True).order_by(  # noqa: E712
-            StorePlatform.store_id, StorePlatform.is_primary.desc()
+            StorePlatform.store_id, StorePlatform.joined_at
         )
     ).all()
     store_platform_map: dict[int, list[str]] = {}
@@ -1563,7 +1564,7 @@ def print_summary(db: Session):
             StorePlatform.custom_subdomain,
         ).join(Platform, Platform.id == StorePlatform.platform_id)
         .where(StorePlatform.is_active == True)  # noqa: E712
-        .order_by(StorePlatform.store_id, StorePlatform.is_primary.desc())
+        .order_by(StorePlatform.store_id, StorePlatform.joined_at)
     ).all()
     for store_id, pcode, pdomain, custom_sub in sp_detail_rows:
         store_platform_details.setdefault(store_id, []).append({