feat(loyalty): implement Phase 2 - company-wide points system

Complete implementation of loyalty module Phase 2 features:

Database & Models:
- Add company_id to LoyaltyProgram for chain-wide loyalty
- Add company_id to LoyaltyCard for multi-location support
- Add CompanyLoyaltySettings model for admin-controlled settings
- Add points expiration, welcome bonus, and minimum redemption fields
- Add POINTS_EXPIRED, WELCOME_BONUS transaction types

Services:
- Update program_service for company-based queries
- Update card_service with enrollment and welcome bonus
- Update points_service with void_points for returns
- Update stamp_service for company context
- Update pin_service for company-wide operations

API Endpoints:
- Admin: Program listing with stats, company detail views
- Vendor: Terminal operations, card management, settings
- Storefront: Customer card/transactions, self-enrollment

UI Templates:
- Admin: Programs dashboard, company detail, settings
- Vendor: Terminal, cards list, card detail, settings, stats, enrollment
- Storefront: Dashboard, history, enrollment, success pages

Background Tasks:
- Point expiration task (daily, based on inactivity)
- Wallet sync task (hourly)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/modules/loyalty/static/vendor/js/loyalty-stats.js

@@ -0,0 +1,74 @@
+// app/modules/loyalty/static/vendor/js/loyalty-stats.js
+// noqa: js-006 - async init pattern is safe, loadData has try/catch
+
+const loyaltyStatsLog = window.LogConfig.loggers.loyaltyStats || window.LogConfig.createLogger('loyaltyStats');
+
+function vendorLoyaltyStats() {
+    return {
+        ...data(),
+        currentPage: 'loyalty-stats',
+
+        stats: {
+            total_cards: 0,
+            active_cards: 0,
+            new_this_month: 0,
+            total_points_issued: 0,
+            total_points_redeemed: 0,
+            total_points_balance: 0,
+            points_issued_30d: 0,
+            points_redeemed_30d: 0,
+            transactions_30d: 0,
+            avg_points_per_member: 0
+        },
+
+        loading: false,
+        error: null,
+
+        async init() {
+            loyaltyStatsLog.info('=== LOYALTY STATS PAGE INITIALIZING ===');
+            if (window._loyaltyStatsInitialized) return;
+            window._loyaltyStatsInitialized = true;
+
+            await this.loadStats();
+            loyaltyStatsLog.info('=== LOYALTY STATS PAGE INITIALIZATION COMPLETE ===');
+        },
+
+        async loadStats() {
+            this.loading = true;
+            this.error = null;
+
+            try {
+                const response = await apiClient.get('/vendor/loyalty/stats');
+                if (response) {
+                    this.stats = {
+                        total_cards: response.total_cards || 0,
+                        active_cards: response.active_cards || 0,
+                        new_this_month: response.new_this_month || 0,
+                        total_points_issued: response.total_points_issued || 0,
+                        total_points_redeemed: response.total_points_redeemed || 0,
+                        total_points_balance: response.total_points_balance || 0,
+                        points_issued_30d: response.points_issued_30d || 0,
+                        points_redeemed_30d: response.points_redeemed_30d || 0,
+                        transactions_30d: response.transactions_30d || 0,
+                        avg_points_per_member: response.avg_points_per_member || 0
+                    };
+                    loyaltyStatsLog.info('Stats loaded');
+                }
+            } catch (error) {
+                loyaltyStatsLog.error('Failed to load stats:', error);
+                this.error = error.message;
+            } finally {
+                this.loading = false;
+            }
+        },
+
+        formatNumber(num) {
+            return num == null ? '0' : new Intl.NumberFormat('en-US').format(num);
+        }
+    };
+}
+
+if (!window.LogConfig.loggers.loyaltyStats) {
+    window.LogConfig.loggers.loyaltyStats = window.LogConfig.createLogger('loyaltyStats');
+}
+loyaltyStatsLog.info('Loyalty stats module loaded');