feat: T6 wave 3 – treatment books from lot, label print lock, restricted zone, authority notices

- Treatments book their dose from a medicine lot (delta booking on edit,
  bulk all-or-nothing, idempotent); Bestandsbuch columns from the lot,
  FEHLT exactly where treatmentLogGaps reports a gap; Bestandsbuch export
  needs veterinary-medicines:read.
- Label printing: 409 LABEL_PARTICULARS_MISSING on gaps, proof print with
  watermark, PRINT audit before the PDF, check endpoints; digit rules only
  from the seeded ComplianceSettings row (fail closed).
- Restricted zone (Berlin day): create, update, move, merge and CSV import
  blocked inside an active restriction; override with reason and
  compliance:manage, audited, never stored on the colony; split, harvest
  and dissolve stay free; restriction details only with compliance:read.
- Authority notices: settings, herd snapshot, registration/herd change/TSK
  notices with one open draft per kind under the settings lock.
- Label check refinements (geometric reading order, number|unit pairs).
- ARCHITECTURE.md §12.6–12.8, Annahmen 71–77; spec §5.6 Berlin day.

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

ApiCore-Backend/src/compliance/dto/mark-sent.dto.ts

@@ -0,0 +1,33 @@
+import { ApiPropertyOptional } from '@nestjs/swagger';
+import {
+  IsDateString,
+  IsOptional,
+  IsString,
+  Matches,
+  MaxLength,
+} from 'class-validator';
+import { DAY_MESSAGE, DAY_PATTERN } from './create-authority-notice.dto';
+import { MAX_NOTICE_TEXT_LENGTH } from './update-authority-notice.dto';
+
+export class MarkSentDto {
+  @ApiPropertyOptional({
+    example: '2027-01-15',
+    description: 'Vorgabe: heute (Berlin)',
+  })
+  @IsOptional()
+  @Matches(DAY_PATTERN, { message: `sentOn ${DAY_MESSAGE}` })
+  @IsDateString({ strict: true })
+  sentOn?: string;
+
+  @ApiPropertyOptional({ description: 'z. B. E-Mail, Post' })
+  @IsOptional()
+  @IsString()
+  @MaxLength(MAX_NOTICE_TEXT_LENGTH)
+  sentVia?: string;
+
+  @ApiPropertyOptional({ description: 'Aktenzeichen' })
+  @IsOptional()
+  @IsString()
+  @MaxLength(MAX_NOTICE_TEXT_LENGTH)
+  reference?: string;
+}