feat: extend offline queueing to all quick-capture forms

Only Durchsicht had an offline fallback (queue to IndexedDB, sync on
reconnect); Behandlung, Fütterung, Varroamessung, Schwarmkontrolle and
Ernte just failed outright with no signal - exactly the situation a
beekeeper is in at the actual hive. Generalizes lib/offline/db.ts and
sync.ts to six queues (version-bumped IndexedDB schema, existing queued
inspections preserved), wires the same "server rejected it vs. no
network" fallback into all five remaining */new pages, and updates the
sync badge to count/drain all six.

Also: doc-hygiene pass (ARCHITECTURE.md/TASKS.md) to replace the stale
pg_dump/CronJob backup plan with the in-app BackupModule that actually
shipped earlier this session.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

ApiCore-Frontend/src/lib/offline/sync.spec.ts

@@ -11,6 +11,19 @@ vi.mock("@/lib/inspections/api", () => ({
 vi.mock("./db", () => ({
   getPendingInspections: vi.fn(),
   removePendingInspection: vi.fn(),
+  // The other five queues are exercised by their own dedicated tests
+  // elsewhere; here they just need to resolve empty so runSync()'s
+  // Promise.all doesn't touch their (unmocked, real) create functions.
+  getPendingTreatments: vi.fn().mockResolvedValue([]),
+  removePendingTreatment: vi.fn(),
+  getPendingFeedings: vi.fn().mockResolvedValue([]),
+  removePendingFeeding: vi.fn(),
+  getPendingVarroaMeasurements: vi.fn().mockResolvedValue([]),
+  removePendingVarroaMeasurement: vi.fn(),
+  getPendingSwarmControlChecks: vi.fn().mockResolvedValue([]),
+  removePendingSwarmControlCheck: vi.fn(),
+  getPendingHarvests: vi.fn().mockResolvedValue([]),
+  removePendingHarvest: vi.fn(),
 }));
 
 const mockedCreateInspection = vi.mocked(createInspection);