feat: T4 wave 11 – bottling form with article values and confirmation, Telegram in the app

- Bottling form: jar size and best-before from the product with source,
  differs-hints before saving, prefill status, water-content confirmation
  naming the measured value, idempotency key renewed on body change;
  product form gets shelf life (months) and whole-gram jar weight.
- Telegram frontend: link card with step-up dialog, t.me-only deep link,
  status polling, unlink; system Telegram card with receiver/sender state
  and confirmed retry; StepUpDialog shared with the backup import.
- Reauth calls never refresh-and-retry on 401 (no double lockout count);
  German texts for expired session and 429; service worker never caches
  Telegram, notification settings and system responses.
- Telegram backend round 2: shared link removal on every disconnect path,
  lease released on shutdown, connection errors not counted as poison.
- ARCHITECTURE.md §2, §6 (Annahmen 56–58), §10, §11.12, §11.13; TASKS.md T4.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Backend/src/notifications/notification-preferences.service.spec.ts

@@ -199,14 +199,14 @@ describe('NotificationPreferencesService', () => {
       }
     });
 
-    it('NotificationSettingsView.telegram.configured is true with the username set and no token in the API process', async () => {
+    it('NotificationSettingsView.telegram.botNameSet is true with the username set and no token in the API process', async () => {
       process.env.TELEGRAM_BOT_USERNAME = '@apicore_test_bot';
       delete process.env.TELEGRAM_BOT_TOKEN;
 
       const view = await service.toView(stored as never);
 
       expect(view.telegram).toEqual({
-        configured: true,
+        botNameSet: true,
         botUsername: 'apicore_test_bot',
         linked: false,
         firstName: null,
@@ -223,7 +223,7 @@ describe('NotificationPreferencesService', () => {
 
       const view = await service.toView(stored as never);
 
-      expect(view.telegram.configured).toBe(false);
+      expect(view.telegram.botNameSet).toBe(false);
       expect(view.telegram.botUsername).toBeNull();
     });