fix(loyalty): translate transaction types + notes on card detail page

Card detail transaction history now shows translated transaction type
labels and system-generated notes. Uses server-rendered labels object
(same pattern as terminal) to avoid async i18n flicker.

- Transaction types: server-rendered txLabels lookup (all 11 types)
- Notes: txNotes lookup maps English DB strings to translated text
  (e.g., "Welcome bonus on enrollment" → "Bonus de bienvenue...")
- Added welcome_bonus_note key to all 4 locales

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/loyalty/static/store/js/loyalty-card-detail.js

@@ -12,6 +12,8 @@ function storeLoyaltyCardDetail() {
         card: null,
         transactions: [],
         pagination: { page: 1, per_page: 20, total: 0 },
+        txLabels: window._cardDetailLabels?.txLabels || {},
+        txNotes: window._cardDetailLabels?.txNotes || {},
 
         loading: false,
         error: null,