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>

app/modules/billing/services/feature_service.py

@@ -108,10 +108,17 @@ class FeatureService:
     # Store -> Merchant Resolution
     # =========================================================================
 
-    def _get_merchant_for_store(self, db: Session, store_id: int) -> tuple[int | None, int | None]:
+    def _get_merchant_for_store(
+        self, db: Session, store_id: int, platform_id: int | None = None
+    ) -> tuple[int | None, int | None]:
         """
         Resolve store_id to (merchant_id, platform_id).
 
+        Args:
+            db: Database session
+            store_id: Store ID
+            platform_id: Platform ID from JWT. When provided, skips DB lookup.
+
         Returns:
             Tuple of (merchant_id, platform_id), either may be None
         """
@@ -123,7 +130,8 @@ class FeatureService:
             return None, None
 
         merchant_id = store.merchant_id
-        platform_id = platform_service.get_primary_platform_id_for_store(db, store_id)
+        if platform_id is None:
+            platform_id = platform_service.get_first_active_platform_id_for_store(db, store_id)
 
         return merchant_id, platform_id
 
@@ -204,28 +212,29 @@ class FeatureService:
         return subscription.tier.has_feature(feature_code)
 
     def has_feature_for_store(
-        self, db: Session, store_id: int, feature_code: str
+        self, db: Session, store_id: int, feature_code: str,
+        platform_id: int | None = None,
     ) -> bool:
         """
         Convenience method that resolves the store -> merchant -> platform
         hierarchy and checks whether the merchant has access to a feature.
 
-        Looks up the store's merchant_id and platform_id, then delegates
-        to has_feature().
-
         Args:
             db: Database session.
             store_id: The store ID to resolve.
             feature_code: The feature code to check.
+            platform_id: Platform ID from JWT. When provided, skips DB lookup.
 
         Returns:
             True if the resolved merchant has access to the feature,
             False if the store/merchant cannot be resolved or lacks access.
         """
-        merchant_id, platform_id = self._get_merchant_for_store(db, store_id)
-        if merchant_id is None or platform_id is None:
+        merchant_id, resolved_platform_id = self._get_merchant_for_store(
+            db, store_id, platform_id=platform_id
+        )
+        if merchant_id is None or resolved_platform_id is None:
             return False
-        return self.has_feature(db, merchant_id, platform_id, feature_code)
+        return self.has_feature(db, merchant_id, resolved_platform_id, feature_code)
 
     def get_merchant_feature_codes(
         self, db: Session, merchant_id: int, platform_id: int
@@ -317,7 +326,7 @@ class FeatureService:
             feature_code: Feature code (e.g., "products_limit")
             store_id: Store ID (if checking per-store)
             merchant_id: Merchant ID (if already known)
-            platform_id: Platform ID (if already known)
+            platform_id: Platform ID (if already known, e.g. from JWT)
 
         Returns:
             (allowed, error_message) tuple
@@ -326,7 +335,9 @@ class FeatureService:
 
         # Resolve store -> merchant if needed
         if merchant_id is None and store_id is not None:
-            merchant_id, platform_id = self._get_merchant_for_store(db, store_id)
+            merchant_id, platform_id = self._get_merchant_for_store(
+                db, store_id, platform_id=platform_id
+            )
 
         if merchant_id is None or platform_id is None:
             return False, "No subscription found"