fix: Paket 0 – data integrity, security hardening and field usability

Backend
- Backup covers every Prisma model (bundle v3); a guard test fails for any
  new model that is neither backed up nor explicitly excluded. Unsealed
  bundles may only add rows to 27 legacy master/field tables and never
  overwrite; counters, ledgers, settings, roles etc. need a sealed file.
  Shared import limit BACKUP_MAX_IMPORT_BYTES (default 50 MB, max 256 MB)
  with warnings in log and UI; replaced document files are removed after
  commit.
- Post-commit side effects (automation, calendar sync, webhooks) run via
  runAfterCommit and never turn a committed write into a 500, so retries
  with the same Idempotency-Key no longer create duplicates.
- Calendar outbox is multi-replica safe: per-entry claims with stale
  takeover, revision-based settle, new Graph event only on 404/410,
  transactionId on create, 30 s Graph timeout, URL-encoded ids, GUID
  validation for groupId, "run now" in background and resets FAILED.
- Automation tasks are deduplicated under a row lock on the rule.
- Update DTOs follow one null rule: omitted = unchanged, null clears a
  nullable field, null on a required field is a 400.
- Varroa mites/day is recomputed on correction; withdrawal status is
  checked against the harvest date (?at=), bounded colonyIds; inspection
  create is audited; updates re-enqueue calendar entries.
- Dashboard, statistics and apiary/colony guards treat WEAK, CONSPICUOUS
  and QUEENLESS colonies as living.
- Prisma errors and body-parser errors are logged without query values or
  request bodies.
- Migration 20261012100000_calendar_sync_claims; schema index name aligned
  with the existing database object.

Frontend
- Sticky save bar sticks again (no scroll container ancestors, card uses
  overflow-clip), safe-area insets, scroll-padding, FAB hidden on forms,
  sticky desktop sidebar.
- Inspections record yes / no / not checked instead of silent defaults.
- All living colonies are selectable; shared RecordSelect, EnumSelect,
  ChoiceGroup and TriStateField replace per-page copies; selects show
  names instead of ids; labels point at real controls.
- Emptied optional fields are sent as null (emptyToNull) so every field
  can be cleared; dates default to the local day and are sent via
  toApiDate.
- Harvest withdrawal warning uses the harvest date; backup page warns when
  a backup outgrows the import limit and lists skipped tables.

Build and docs
- Docker builds fail unless lint, typecheck and unit tests pass.
- ARCHITECTURE.md updated (assumptions 9-12, 19-21, section 8) and spec
  docs/superpowers/specs/2026-10-12-plattform-rueckgrat-und-fahrplan-design.md
  for the backbone (api/worker/job roles, domain event outbox) and the
  feature roadmap T3-T7.

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

ApiCore-Frontend/src/lib/apiaries/api.ts

@@ -1,5 +1,5 @@
 import { apiFetch } from "@/lib/auth/api-client";
-import { Apiary, ApiaryInput, ApiaryStatus } from "./types";
+import { Apiary, ApiaryInput, ApiaryStatus, UpdateApiaryInput } from "./types";
 
 export interface ApiaryFilter {
   status?: ApiaryStatus;
@@ -25,7 +25,7 @@ export function createApiary(input: ApiaryInput): Promise<Apiary> {
   });
 }
 
-export function updateApiary(id: string, input: Partial<ApiaryInput>): Promise<Apiary> {
+export function updateApiary(id: string, input: UpdateApiaryInput): Promise<Apiary> {
   return apiFetch<Apiary>(`/apiaries/${encodeURIComponent(id)}`, {
     method: "PATCH",
     body: JSON.stringify(input),

ApiCore-Frontend/src/lib/apiaries/types.ts

@@ -15,12 +15,24 @@ export interface Apiary {
   deactivatedAt: string | null;
 }
 
+/** Optional fields: `null` or omitted both mean "no value". */
 export interface ApiaryInput {
   name: string;
-  description?: string;
-  location?: string;
-  latitude?: number;
-  longitude?: number;
-  address?: string;
-  notes?: string;
+  description?: string | null;
+  location?: string | null;
+  latitude?: number | null;
+  longitude?: number | null;
+  address?: string | null;
+  notes?: string | null;
+}
+
+/** `null` clears an optional field, an omitted one stays unchanged. */
+export interface UpdateApiaryInput {
+  name?: string;
+  description?: string | null;
+  location?: string | null;
+  latitude?: number | null;
+  longitude?: number | null;
+  address?: string | null;
+  notes?: string | null;
 }