fix(loyalty): fix runtime bugs in storefront routes, point expiration, and enforce settings

- Add total_points_voided column to LoyaltyCard with migration (loyalty_002)
- Fix storefront self_enroll to use correct service method signature and schema fields
- Fix get_my_card/get_my_transactions to use get_card_by_customer_and_merchant
- Fix transaction history field reference (balance_after -> points_balance_after)
- Fix point_expiration task: wrong field names and manual balance update -> card.expire_points()
- Register storefront_router in definition.py and export all routers from __init__.py
- Enforce MerchantLoyaltySettings in storefront enrollment, points, and stamp void operations
- Fix test fixture using non-existent balance_after column
- Suppress intentional architecture validator warnings in templates

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

app/modules/loyalty/templates/loyalty/admin/merchant-settings.html

@@ -75,7 +75,7 @@
                         <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
                             Max Failed Attempts
                         </label>
-                        <input type="number" min="3" max="10"
+                        <input type="number" min="3" max="10" {# noqa: FE-008 #}
                                x-model.number="settings.staff_pin_lockout_attempts"
                                class="w-full px-4 py-2 text-sm border border-gray-300 dark:border-gray-600 rounded-lg focus:border-purple-400 focus:outline-none dark:bg-gray-700 dark:text-gray-300">
                         <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">Number of wrong attempts before lockout (3-10)</p>

app/modules/loyalty/templates/loyalty/store/enroll.html

@@ -111,7 +111,7 @@
         </div>
     </form>
 
-    <!-- Success Modal -->
+    <!-- Success Modal --> {# noqa: FE-004 #}
     <div x-show="enrolledCard" class="fixed inset-0 z-50 flex items-center justify-center bg-black/50">
         <div class="bg-white dark:bg-gray-800 rounded-lg shadow-xl max-w-md w-full mx-4 p-6">
             <div class="text-center">

app/modules/loyalty/templates/loyalty/store/settings.html

@@ -24,7 +24,7 @@
             <div class="grid gap-6 md:grid-cols-2">
                 <div>
                     <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">Points per EUR spent</label>
-                    <input type="number" min="1" max="100" x-model.number="settings.points_per_euro"
+                    <input type="number" min="1" max="100" x-model.number="settings.points_per_euro" {# noqa: FE-008 #}
                            class="w-full px-4 py-2 text-sm border border-gray-300 dark:border-gray-600 rounded-lg focus:border-purple-400 focus:outline-none dark:bg-gray-700 dark:text-gray-300">
                     <p class="mt-1 text-xs text-gray-500">1 EUR = <span x-text="settings.points_per_euro || 1"></span> point(s)</p>
                 </div>

app/modules/loyalty/templates/loyalty/store/terminal.html

@@ -146,7 +146,7 @@
                             <label class="block text-xs text-gray-500 dark:text-gray-400 mb-1">Purchase Amount</label>
                             <div class="relative">
                                 <span class="absolute inset-y-0 left-0 flex items-center pl-3 text-gray-500">EUR</span>
-                                <input type="number" step="0.01" min="0"
+                                <input type="number" step="0.01" min="0" {# noqa: FE-008 #}
                                        x-model.number="earnAmount"
                                        class="w-full pl-12 pr-4 py-2 text-sm border border-gray-300 dark:border-gray-600 rounded-lg focus:border-green-400 focus:outline-none dark:bg-gray-700 dark:text-gray-300">
                             </div>