feat(ai): add ADR-036 unified OCR architecture and frontend test coverage

- Add ADR-036 unified OCR architecture (typhoon-ocr via Ollama)
- Extend AI execution profiles for OCR sandbox configuration
- Add comprehensive frontend test coverage (components, hooks, services)
- Add backend test coverage for document-numbering services
- Update OCR sidecar with typhoon-ocr integration
- Add AI policy service and execution profile management
- Update AGENTS.md and architecture documentation

backend/src/modules/ai/dto/apply-profile.dto.ts

@@ -0,0 +1,28 @@
+// File: backend/src/modules/ai/dto/apply-profile.dto.ts
+// Change Log:
+// - 2026-06-13: ADR-036 — DTO สำหรับ apply sandbox draft ไป production
+
+import { ApiPropertyOptional } from '@nestjs/swagger';
+import { IsEnum, IsOptional, IsString, MaxLength } from 'class-validator';
+
+/**
+ * DTO สำหรับคำสั่ง Apply to Production
+ */
+export class ApplyProfileDto {
+  @ApiPropertyOptional({
+    enum: ['np-dms-ai', 'np-dms-ocr'],
+    description: 'Canonical model ที่ต้องการ apply',
+  })
+  @IsOptional()
+  @IsEnum(['np-dms-ai', 'np-dms-ocr'])
+  canonicalModel?: 'np-dms-ai' | 'np-dms-ocr';
+
+  @ApiPropertyOptional({
+    description: 'เหตุผลในการ apply สำหรับ audit trail',
+    maxLength: 500,
+  })
+  @IsOptional()
+  @IsString()
+  @MaxLength(500)
+  reason?: string;
+}