fix: T4 browser-check findings, interval on season state, T6 plan refresh

- Honey batch create omits an empty batch number (was 400); product form
  labels the legacy total weight, detail shows jar weight and shelf life;
  bottling hints next to their fields, values cleared on product change,
  post-save water-content wording; withdraw reason placeholder not
  selectable; honey batch actions offline-disabled with reason, 44 px.
- Offline signal: one slow request no longer flips the app offline; two
  consecutive timeouts do, any HTTP answer clears it, aborts never count.
- Phenology sheet as a side card on desktop with focus return; confirm
  dialogs as alertdialog; step-up texts in du-form ("Das Passwort stimmt
  nicht."); backup import gives its disabled reason; missing event labels
  plus a guard test; profile buttons 44 px.
- GET /phenology/state returns intervalDays via the shared
  inspectionIntervalOf (autopilot, digest, season state use one source).
- T6 plan aligned with the code after T4, plus owner decisions of
  2026-10-15 (Berlin day for restrictions, COMPLIANCE category, override
  without step-up).

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

ApiCore-Backend/src/reminders/digest.service.ts

@@ -12,6 +12,7 @@ import { loggableError } from '../common/loggable-error';
 import { utcDay } from '../domain-events/domain-event-types';
 import { NotificationsService } from '../notifications/notifications.service';
 import { PrismaService } from '../prisma/prisma.service';
+import { inspectionIntervalOf } from '../season/inspection-due';
 import { SEASON_SEGMENTS, SeasonSegmentKey } from '../season/season-types';
 import { JobPartialFailure } from '../system/job-run.service';
 
@@ -378,10 +379,11 @@ export class DigestService {
       .map((net) => ({
         apiaryName: names.get(net.apiaryId) ?? '',
         segment: net.segment,
-        intervalDays:
-          net.segment === 'WINTERRUHE' || !interval.active
-            ? null
-            : interval.config.intervalDays[net.segment],
+        intervalDays: inspectionIntervalOf(
+          net.segment,
+          interval.config.intervalDays,
+          interval.active,
+        ),
         isReturn: net.isReturn,
       }))
       .sort((a, b) => a.apiaryName.localeCompare(b.apiaryName, 'de'));