260318:1401 Fix UUID #05

backend/fix_switch.js

@@ -1,133 +0,0 @@
-const fs = require('fs');
-const filepath = 'd:/nap-dms.lcbp3/specs/03-Data-and-Storage/n8n.workflow.json';
-const workflow = JSON.parse(fs.readFileSync(filepath, 'utf8'));
-
-const switchNodeIndex = workflow.nodes.findIndex(n => n.name === 'Route by Confidence');
-
-if (switchNodeIndex > -1) {
-  workflow.nodes[switchNodeIndex] = {
-    id: "23d11b5e-49b4-4b53-911b-76b6bb77aab8",
-    name: "Route by Confidence",
-    type: "n8n-nodes-base.switch",
-    typeVersion: 3.2,
-    position: [6840, 3696],
-    parameters: {
-      rules: {
-        values: [
-          {
-            conditions: {
-              options: {
-                caseSensitive: true,
-                leftValue: "",
-                typeValidation: "strict",
-                version: 2
-              },
-              conditions: [
-                {
-                  leftValue: "={{ $json.route_index }}",
-                  rightValue: 0,
-                  operator: {
-                    type: "number",
-                    operation: "equals",
-                    singleValue: true
-                  }
-                }
-              ],
-              combinator: "and"
-            },
-            renameOutput: true,
-            outputKey: "Auto Ingest"
-          },
-          {
-            conditions: {
-              options: {
-                caseSensitive: true,
-                leftValue: "",
-                typeValidation: "strict",
-                version: 2
-              },
-              conditions: [
-                {
-                  leftValue: "={{ $json.route_index }}",
-                  rightValue: 1,
-                  operator: {
-                    type: "number",
-                    operation: "equals",
-                    singleValue: true
-                  }
-                }
-              ],
-              combinator: "and"
-            },
-            renameOutput: true,
-            outputKey: "Review Queue"
-          },
-          {
-            conditions: {
-              options: {
-                caseSensitive: true,
-                leftValue: "",
-                typeValidation: "strict",
-                version: 2
-              },
-              conditions: [
-                {
-                  leftValue: "={{ $json.route_index }}",
-                  rightValue: 2,
-                  operator: {
-                    type: "number",
-                    operation: "equals",
-                    singleValue: true
-                  }
-                }
-              ],
-              combinator: "and"
-            },
-            renameOutput: true,
-            outputKey: "Reject"
-          },
-          {
-            conditions: {
-              options: {
-                caseSensitive: true,
-                leftValue: "",
-                typeValidation: "strict",
-                version: 2
-              },
-              conditions: [
-                {
-                  leftValue: "={{ $json.route_index }}",
-                  rightValue: 3,
-                  operator: {
-                    type: "number",
-                    operation: "equals",
-                    singleValue: true
-                  }
-                }
-              ],
-              combinator: "and"
-            },
-            renameOutput: true,
-            outputKey: "Error Log"
-          }
-        ]
-      }
-    }
-  };
-
-  if (workflow.connections['Confidence Router'] || workflow.connections['Route by Confidence']) {
-    workflow.connections['Route by Confidence'] = {
-      'main': [
-        [ { 'node': 'Import to Backend', 'type': 'main', 'index': 0 } ],
-        [ { 'node': 'Insert Review Queue', 'type': 'main', 'index': 0 } ],
-        [ { 'node': 'Log Reject to CSV', 'type': 'main', 'index': 0 } ],
-        [ { 'node': 'Log Error to CSV', 'type': 'main', 'index': 0 } ]
-      ]
-    };
-  }
-
-  fs.writeFileSync(filepath, JSON.stringify(workflow, null, 2));
-  console.log("Updated Switch node to use typeVersion 3.2 properly.");
-} else {
-  console.log("Could not find Route by Confidence node.");
-}

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "backend",
-  "version": "1.5.1",
+  "version": "1.8.0",
   "description": "<p align=\"center\">\r   <a href=\"http://nestjs.com/\" target=\"blank\"><img src=\"https://nestjs.com/img/logo-small.svg\" width=\"120\" alt=\"Nest Logo\" /></a>\r </p>",
   "author": "",
   "private": true,

backend/src/modules/correspondence/correspondence.controller.spec.ts

@@ -100,7 +100,7 @@ describe('CorrespondenceController', () => {
 
       const mockReq = { user: { user_id: 1 } };
       const result = await controller.submit(
-        1,
+        'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11',
         { note: 'Test note' },
         mockReq as Parameters<typeof controller.submit>[2]
       );

backend/src/modules/correspondence/correspondence.controller.ts

@@ -6,7 +6,6 @@ import {
   UseGuards,
   Request,
   Param,
-  ParseIntPipe,
   Query,
   Delete,
   Put,
@@ -43,7 +42,7 @@ export class CorrespondenceController {
     private readonly workflowService: CorrespondenceWorkflowService
   ) {}
 
-  @Post(':id/workflow/action')
+  @Post(':uuid/workflow/action')
   @ApiOperation({ summary: 'Process workflow action (Approve/Reject/Review)' })
   @ApiResponse({ status: 201, description: 'Action processed successfully.' })
   @RequirePermission('workflow.action_review')
@@ -188,15 +187,16 @@ export class CorrespondenceController {
     return this.correspondenceService.addReference(corr.id, dto);
   }
 
-  @Delete(':uuid/references/:targetId')
+  @Delete(':uuid/references/:targetUuid')
   @ApiOperation({ summary: 'Remove reference' })
   @ApiResponse({ status: 200, description: 'Reference removed successfully.' })
   @RequirePermission('document.edit')
   async removeReference(
     @Param('uuid', ParseUuidPipe) uuid: string,
-    @Param('targetId', ParseIntPipe) targetId: number
+    @Param('targetUuid', ParseUuidPipe) targetUuid: string
   ) {
     const corr = await this.correspondenceService.findOneByUuid(uuid);
-    return this.correspondenceService.removeReference(corr.id, targetId);
+    const target = await this.correspondenceService.findOneByUuid(targetUuid);
+    return this.correspondenceService.removeReference(corr.id, target.id);
   }
 }

backend/src/modules/correspondence/correspondence.service.ts

@@ -423,8 +423,9 @@ export class CorrespondenceService {
 
   async addReference(id: number, dto: AddReferenceDto) {
     const source = await this.correspondenceRepo.findOne({ where: { id } });
+    // ADR-019: Resolve target UUID → internal INT id
     const target = await this.correspondenceRepo.findOne({
-      where: { id: dto.targetId },
+      where: { uuid: dto.targetUuid },
     });
 
     if (!source || !target) {
@@ -438,7 +439,7 @@ export class CorrespondenceService {
     const exists = await this.referenceRepo.findOne({
       where: {
         sourceId: id,
-        targetId: dto.targetId,
+        targetId: target.id,
       },
     });
 
@@ -448,7 +449,7 @@ export class CorrespondenceService {
 
     const ref = this.referenceRepo.create({
       sourceId: id,
-      targetId: dto.targetId,
+      targetId: target.id,
     });
 
     return this.referenceRepo.save(ref);

backend/src/modules/correspondence/dto/add-reference.dto.ts

@@ -1,12 +1,12 @@
-import { IsInt, IsNotEmpty } from 'class-validator';
+import { IsUUID, IsNotEmpty } from 'class-validator';
 import { ApiProperty } from '@nestjs/swagger';
 
 export class AddReferenceDto {
   @ApiProperty({
-    description: 'Target Correspondence ID to reference',
-    example: 20,
+    description: 'Target Correspondence UUID to reference (ADR-019)',
+    example: '019505a1-7c3e-7000-8000-abc123def456',
   })
-  @IsInt()
+  @IsUUID('all')
   @IsNotEmpty()
-  targetId!: number;
+  targetUuid!: string;
 }

backend/src/modules/correspondence/dto/create-correspondence.dto.ts

@@ -76,7 +76,7 @@ export class CreateCorrespondenceDto {
   })
   @IsObject()
   @IsOptional()
-  details?: Record<string, any>; // ข้อมูล JSON (เช่น RFI question)
+  details?: Record<string, unknown>; // ข้อมูล JSON (เช่น RFI question)
 
   @ApiPropertyOptional({ description: 'Is internal document?', default: false })
   @IsBoolean()

backend/src/modules/correspondence/entities/correspondence-revision.entity.ts

@@ -53,7 +53,7 @@ export class CorrespondenceRevision extends UuidBaseEntity {
   remarks?: string;
 
   @Column({ type: 'json', nullable: true })
-  details?: any; // เก็บข้อมูลแบบ Dynamic ตาม Type
+  details?: object; // Dynamic JSON — typed as `object` per TypeORM JSON column convention (no-any, ADR-019)
 
   @Column({ name: 'schema_version', default: 1 })
   schemaVersion!: number;

backend/src/modules/document-numbering/services/document-numbering.service.ts

@@ -267,12 +267,17 @@ export class DocumentNumberingService {
   // --- Admin / Legacy ---
 
   async getTemplates() {
-    return this.formatRepo.find();
+    return this.formatRepo.find({
+      relations: ['project', 'correspondenceType'],
+    });
   }
 
   async getTemplatesByProject(projectId: number | string) {
     const internalId = await this.resolveProjectId(projectId);
-    return this.formatRepo.find({ where: { projectId: internalId } });
+    return this.formatRepo.find({
+      where: { projectId: internalId },
+      relations: ['project', 'correspondenceType'],
+    });
   }
 
   async saveTemplate(dto: any) {

backend/src/modules/migration/migration.controller.spec.ts

@@ -33,11 +33,12 @@ describe('MigrationController', () => {
   it('should call importCorrespondence on service', async () => {
     const dto: ImportCorrespondenceDto = {
       document_number: 'DOC-001',
-      title: 'Legacy Record',
+      subject: 'Legacy Record',
       category: 'Correspondence',
       source_file_path: '/staging_ai/test.pdf',
       migrated_by: 'SYSTEM_IMPORT',
       batch_id: 'batch1',
+      project_id: 1,
     };
 
     const idempotencyKey = 'key123';

backend/src/modules/rfa/dto/search-rfa.dto.ts

@@ -1,11 +1,12 @@
-import { IsInt, IsOptional, IsString, IsNotEmpty } from 'class-validator';
+import { IsInt, IsOptional, IsString, IsUUID } from 'class-validator';
 import { Type } from 'class-transformer';
 
 export class SearchRfaDto {
-  @IsInt()
-  @Type(() => Number)
-  @IsNotEmpty()
-  projectId!: number; // บังคับระบุ Project
+  @IsUUID('all')
+  projectUuid!: string; // ADR-019: Public UUID of the project
+
+  /** @internal Resolved INT ID — set by controller, do NOT expose in API */
+  projectId?: number;
 
   @IsOptional()
   @IsInt()
@@ -13,9 +14,12 @@ export class SearchRfaDto {
   rfaTypeId?: number; // กรองตามประเภท RFA
 
   @IsOptional()
-  @IsInt()
-  @Type(() => Number)
-  statusId?: number; // กรองตามสถานะ (เช่น Draft, For Approve)
+  @IsString()
+  statusCode?: string; // กรองตามสถานะโดยใช้ status code เช่น 'DFT', 'FAP'
+
+  @IsOptional()
+  @IsString()
+  revisionStatus?: string; // 'CURRENT' | 'OLD' | 'ALL' — default 'CURRENT'
 
   @IsOptional()
   @IsString()

backend/src/modules/rfa/entities/rfa-revision.entity.ts

@@ -35,7 +35,7 @@ export class RfaRevision {
   // --- JSON & Schema Section ---
 
   @Column({ type: 'json', nullable: true })
-  details?: any;
+  details?: object; // Dynamic JSON — typed as `object` per TypeORM JSON column convention (no-any, ADR-019)
 
   // ✅ [New] จำเป็นสำหรับ Data Migration (T2.5.5)
   @Column({ name: 'schema_version', default: 1 })

backend/src/modules/rfa/rfa.controller.ts

@@ -4,7 +4,6 @@ import {
   Controller,
   Get,
   Param,
-  ParseIntPipe,
   Post,
   Query,
   UseGuards,
@@ -22,6 +21,7 @@ import { WorkflowActionDto } from '../correspondence/dto/workflow-action.dto';
 import { User } from '../user/entities/user.entity';
 import { CreateRfaDto } from './dto/create-rfa.dto';
 import { SubmitRfaDto } from './dto/submit-rfa.dto';
+import { SearchRfaDto } from './dto/search-rfa.dto';
 import { RfaService } from './rfa.service';
 
 import { Audit } from '../../common/decorators/audit.decorator';
@@ -29,13 +29,18 @@ import { CurrentUser } from '../../common/decorators/current-user.decorator';
 import { RequirePermission } from '../../common/decorators/require-permission.decorator';
 import { JwtAuthGuard } from '../../common/guards/jwt-auth.guard';
 import { RbacGuard } from '../../common/guards/rbac.guard';
+import { ParseUuidPipe } from '../../common/pipes/parse-uuid.pipe';
+import { ProjectService } from '../project/project.service';
 
 @ApiTags('RFA (Request for Approval)')
 @ApiBearerAuth()
 @UseGuards(JwtAuthGuard, RbacGuard)
 @Controller('rfas')
 export class RfaController {
-  constructor(private readonly rfaService: RfaService) {}
+  constructor(
+    private readonly rfaService: RfaService,
+    private readonly projectService: ProjectService
+  ) {}
 
   @Post()
   @ApiOperation({ summary: 'Create new RFA (Draft)' })
@@ -47,24 +52,26 @@ export class RfaController {
     return this.rfaService.create(createDto, user);
   }
 
-  @Post(':id/submit')
+  @Post(':uuid/submit')
   @ApiOperation({ summary: 'Submit RFA to Workflow' })
-  @ApiParam({ name: 'id', description: 'RFA ID' })
+  @ApiParam({ name: 'uuid', description: 'RFA UUID (from correspondences.uuid)' })
   @ApiBody({ type: SubmitRfaDto })
   @ApiResponse({ status: 200, description: 'RFA submitted successfully' })
   @RequirePermission('rfa.create')
   @Audit('rfa.submit', 'rfa')
-  submit(
-    @Param('id', ParseIntPipe) id: number,
+  async submit(
+    @Param('uuid', ParseUuidPipe) uuid: string,
     @Body() submitDto: SubmitRfaDto,
     @CurrentUser() user: User
   ) {
-    return this.rfaService.submit(id, submitDto.templateId, user);
+    // ADR-019: resolve UUID → internal INT id via findOneByUuidRaw
+    const rfa = await this.rfaService.findOneByUuidRaw(uuid);
+    return this.rfaService.submit(rfa.id, submitDto.templateId, user);
   }
 
-  @Post(':id/action')
+  @Post(':uuid/action')
   @ApiOperation({ summary: 'Process Workflow Action (Approve/Reject)' })
-  @ApiParam({ name: 'id', description: 'RFA ID' })
+  @ApiParam({ name: 'uuid', description: 'RFA UUID (from correspondences.uuid)' })
   @ApiBody({ type: WorkflowActionDto })
   @ApiResponse({
     status: 200,
@@ -72,28 +79,33 @@ export class RfaController {
   })
   @RequirePermission('workflow.action_review')
   @Audit('rfa.action', 'rfa')
-  processAction(
-    @Param('id', ParseIntPipe) id: number,
+  async processAction(
+    @Param('uuid', ParseUuidPipe) uuid: string,
     @Body() actionDto: WorkflowActionDto,
     @CurrentUser() user: User
   ) {
-    return this.rfaService.processAction(id, actionDto, user);
+    // ADR-019: resolve UUID → internal INT id
+    const rfa = await this.rfaService.findOneByUuidRaw(uuid);
+    return this.rfaService.processAction(rfa.id, actionDto, user);
   }
 
   @Get()
   @ApiOperation({ summary: 'List all RFAs with pagination' })
   @ApiResponse({ status: 200, description: 'List of RFAs' })
   @RequirePermission('document.view')
-  findAll(@Query() query: any) {
+  async findAll(@Query() query: SearchRfaDto) {
+    // ADR-019: resolve projectUuid → internal INT projectId
+    const project = await this.projectService.findOneByUuid(query.projectUuid);
+    query.projectId = project.id;
     return this.rfaService.findAll(query);
   }
 
-  @Get(':id')
+  @Get(':uuid')
   @ApiOperation({ summary: 'Get RFA details with revisions and items' })
-  @ApiParam({ name: 'id', description: 'RFA ID' })
+  @ApiParam({ name: 'uuid', description: 'RFA UUID (from correspondences.uuid)' })
   @ApiResponse({ status: 200, description: 'RFA details' })
   @RequirePermission('document.view')
-  findOne(@Param('id', ParseIntPipe) id: number) {
-    return this.rfaService.findOne(id);
+  findOne(@Param('uuid', ParseUuidPipe) uuid: string) {
+    return this.rfaService.findOneByUuid(uuid);
   }
 }

backend/src/modules/rfa/rfa.module.ts

@@ -29,6 +29,7 @@ import { RfaService } from './rfa.service';
 // External Modules
 import { DocumentNumberingModule } from '../document-numbering/document-numbering.module';
 import { NotificationModule } from '../notification/notification.module';
+import { ProjectModule } from '../project/project.module';
 import { SearchModule } from '../search/search.module';
 import { UserModule } from '../user/user.module';
 import { WorkflowEngineModule } from '../workflow-engine/workflow-engine.module';
@@ -56,6 +57,7 @@ import { WorkflowEngineModule } from '../workflow-engine/workflow-engine.module'
     ]),
     DocumentNumberingModule,
     UserModule,
+    ProjectModule,
     SearchModule,
     WorkflowEngineModule,
     NotificationModule,

backend/src/modules/rfa/rfa.service.ts

@@ -32,6 +32,17 @@ import { Rfa } from './entities/rfa.entity';
 // DTOs
 import { WorkflowActionDto } from '../correspondence/dto/workflow-action.dto';
 import { CreateRfaDto } from './dto/create-rfa.dto';
+import { SearchRfaDto } from './dto/search-rfa.dto';
+
+// ------- Local type helpers (no-any ADR-019) -------
+/** CorrespondenceRevision with the rfaRevision relation loaded at runtime */
+type CorrRevWithRfa = CorrespondenceRevision & { rfaRevision?: RfaRevision };
+
+/** RFA entity + a flat `revisions` convenience array for the frontend */
+export interface RfaMapped extends Rfa {
+  uuid?: string; // ADR-019: top-level UUID from correspondence
+  revisions: CorrRevWithRfa[];
+}
 
 // Interfaces & Enums
 import { WorkflowAction } from '../workflow-engine/interfaces/workflow.interface';
@@ -272,6 +283,7 @@ export class RfaService {
       this.searchService
         .indexDocument({
           id: savedCorr.id,
+          uuid: savedCorr.uuid, // ADR-019: index UUID for search
           type: 'rfa',
           docNumber: docNumber.number,
           title: createDto.subject,
@@ -298,13 +310,19 @@ export class RfaService {
 
   // ... (ส่วน findOne, submit, processAction คงเดิมจากไฟล์ที่แนบมา แค่ปรับปรุงเล็กน้อยตาม Context) ...
 
-  async findAll(query: any) {
-    const { page = 1, limit = 20, projectId, status, search } = query;
+  async findAll(query: SearchRfaDto) {
+    const {
+      page = 1,
+      limit = 20,
+      projectId,
+      search,
+      revisionStatus = 'CURRENT',
+      statusCode,
+    } = query;
     const skip = (page - 1) * limit;
 
     // Fix: Start query from Rfa entity instead of Correspondence,
     // because Correspondence has no 'rfas' relation.
-    // [Force Rebuild]
     const queryBuilder = this.rfaRepo
       .createQueryBuilder('rfa')
       .leftJoinAndSelect('rfa.correspondence', 'corr')
@@ -318,11 +336,9 @@ export class RfaService {
       .leftJoinAndSelect('sdRev.attachments', 'attachments');
 
     // Filter by Revision Status (from query param 'revisionStatus')
-    const revStatus = query.revisionStatus || 'CURRENT';
-
-    if (revStatus === 'CURRENT') {
+    if (revisionStatus === 'CURRENT') {
       queryBuilder.where('corrRev.isCurrent = :isCurrent', { isCurrent: true });
-    } else if (revStatus === 'OLD') {
+    } else if (revisionStatus === 'OLD') {
       queryBuilder.where('corrRev.isCurrent = :isCurrent', {
         isCurrent: false,
       });
@@ -333,8 +349,8 @@ export class RfaService {
       queryBuilder.andWhere('corr.projectId = :projectId', { projectId });
     }
 
-    if (status) {
-      queryBuilder.andWhere('status.statusCode = :status', { status });
+    if (statusCode) {
+      queryBuilder.andWhere('status.statusCode = :statusCode', { statusCode });
     }
 
     if (search) {
@@ -355,15 +371,18 @@ export class RfaService {
     );
 
     // Map `revisions` property back to the expected payload for the frontend
-    const mappedItems = items.map((rfa) => {
-      const mappedRfa = { ...rfa } as any;
-      mappedRfa.revisions =
-        rfa.correspondence?.revisions?.map((cr) => ({
+    const mappedItems: RfaMapped[] = items.map((rfa) => {
+      const revisions =
+        (rfa.correspondence?.revisions as CorrRevWithRfa[] | undefined) ?? [];
+      return {
+        ...rfa,
+        uuid: rfa.correspondence?.uuid, // ADR-019: expose UUID at top level
+        revisions: revisions.map((cr) => ({
           ...cr,
-          ...(cr.rfaRevision || {}),
-          id: cr.rfaRevision?.id || cr.id,
-        })) || [];
-      return mappedRfa;
+          ...(cr.rfaRevision ?? {}),
+          id: cr.rfaRevision?.id ?? cr.id,
+        })) as CorrRevWithRfa[],
+      };
     });
 
     return {
@@ -377,6 +396,32 @@ export class RfaService {
     };
   }
 
+  /**
+   * ADR-019: Find RFA by the parent Correspondence UUID (public identifier).
+   * Resolves correspondence.uuid → internal rfa.id
+   */
+  async findOneByUuid(uuid: string) {
+    const correspondence = await this.correspondenceRepo.findOne({
+      where: { uuid },
+      select: ['id'],
+    });
+    if (!correspondence) {
+      throw new NotFoundException(`RFA with UUID ${uuid} not found`);
+    }
+    return this.findOne(correspondence.id);
+  }
+
+  async findOneByUuidRaw(uuid: string) {
+    const correspondence = await this.correspondenceRepo.findOne({
+      where: { uuid },
+      select: ['id'],
+    });
+    if (!correspondence) {
+      throw new NotFoundException(`RFA with UUID ${uuid} not found`);
+    }
+    return this.findOne(correspondence.id, true);
+  }
+
   async findOne(id: number, rawEntities = false) {
     const rfa = await this.rfaRepo.findOne({
       where: { id },
@@ -405,22 +450,26 @@ export class RfaService {
     }
 
     // Map to structure expected by frontend DTO
-    const mappedRfa = { ...rfa } as any;
-    mappedRfa.revisions =
-      rfa.correspondence?.revisions?.map((cr) => ({
+    const revisions =
+      (rfa.correspondence?.revisions as CorrRevWithRfa[] | undefined) ?? [];
+    const mappedRfa: RfaMapped = {
+      ...rfa,
+      uuid: rfa.correspondence?.uuid, // ADR-019: expose UUID at top level
+      revisions: revisions.map((cr) => ({
         ...cr,
-        ...(cr.rfaRevision || {}),
-        id: cr.rfaRevision?.id || cr.id,
-      })) || [];
+        ...(cr.rfaRevision ?? {}),
+        id: cr.rfaRevision?.id ?? cr.id,
+      })) as CorrRevWithRfa[],
+    };
 
     return mappedRfa;
   }
 
   async submit(rfaId: number, templateId: number, user: User) {
     const rfa = await this.findOne(rfaId, true);
-    const currentCorrRev = rfa.correspondence?.revisions?.find(
-      (r: any) => r.isCurrent
-    );
+    const corrRevisions =
+      (rfa.correspondence?.revisions as CorrRevWithRfa[] | undefined) ?? [];
+    const currentCorrRev = corrRevisions.find((r) => r.isCurrent);
     if (!currentCorrRev || !currentCorrRev.rfaRevision)
       throw new NotFoundException('Current revision not found');
 
@@ -512,9 +561,9 @@ export class RfaService {
   async processAction(rfaId: number, dto: WorkflowActionDto, user: User) {
     // Logic คงเดิม: หา Current Routing -> Check Permission -> Call Workflow Engine -> Update DB
     const rfa = await this.findOne(rfaId, true);
-    const currentCorrRev = rfa.correspondence?.revisions?.find(
-      (r: any) => r.isCurrent
-    );
+    const corrRevisions =
+      (rfa.correspondence?.revisions as CorrRevWithRfa[] | undefined) ?? [];
+    const currentCorrRev = corrRevisions.find((r) => r.isCurrent);
     if (!currentCorrRev || !currentCorrRev.rfaRevision)
       throw new NotFoundException('Current revision not found');
 

backend/src/modules/search/search.service.ts

@@ -10,7 +10,7 @@ export class SearchService implements OnModuleInit {
 
   constructor(
     private readonly esService: ElasticsearchService,
-    private readonly configService: ConfigService,
+    private readonly configService: ConfigService
   ) {}
 
   async onModuleInit() {
@@ -34,6 +34,7 @@ export class SearchService implements OnModuleInit {
             mappings: {
               properties: {
                 id: { type: 'integer' },
+                uuid: { type: 'keyword' }, // ADR-019: public identifier
                 type: { type: 'keyword' }, // correspondence, rfa, drawing
                 docNumber: { type: 'text' },
                 title: { type: 'text', analyzer: 'standard' },
@@ -60,12 +61,12 @@ export class SearchService implements OnModuleInit {
     try {
       return await this.esService.index({
         index: this.indexName,
-        id: `${doc.type}_${doc.id}`, // Unique ID: rfa_101
+        id: doc.uuid ? `${doc.type}_${doc.uuid}` : `${doc.type}_${doc.id}`, // ADR-019: prefer UUID key
         document: doc, // ✅ Library รุ่นใหม่ใช้ 'document' แทน 'body' ในบางเวอร์ชัน
       });
     } catch (error) {
       this.logger.error(
-        `Failed to index document: ${(error as Error).message}`,
+        `Failed to index document: ${(error as Error).message}`
       );
     }
   }
@@ -81,7 +82,7 @@ export class SearchService implements OnModuleInit {
       });
     } catch (error) {
       this.logger.error(
-        `Failed to remove document: ${(error as Error).message}`,
+        `Failed to remove document: ${(error as Error).message}`
       );
     }
   }

backend/src/modules/transmittal/dto/search-transmittal.dto.ts

@@ -3,16 +3,18 @@ import {
   IsOptional,
   IsString,
   IsEnum,
-  IsNotEmpty,
+  IsUUID,
 } from 'class-validator';
 import { Type } from 'class-transformer';
 import { TransmittalPurpose } from './create-transmittal.dto';
 
 export class SearchTransmittalDto {
-  @IsInt()
-  @Type(() => Number)
-  @IsNotEmpty()
-  projectId!: number; // บังคับระบุ Project
+  @IsUUID('all')
+  @IsOptional()
+  projectUuid?: string; // ADR-019: Public UUID of the project
+
+  /** @internal Resolved INT ID — set by controller, do NOT expose in API */
+  projectId?: number;
 
   @IsEnum(TransmittalPurpose)
   @IsOptional()

backend/src/modules/transmittal/transmittal.controller.ts

@@ -5,39 +5,59 @@ import {
   Body,
   Param,
   UseGuards,
-  ParseIntPipe,
   Query,
 } from '@nestjs/common';
 import { TransmittalService } from './transmittal.service';
 import { CreateTransmittalDto } from './dto/create-transmittal.dto';
+import { SearchTransmittalDto } from './dto/search-transmittal.dto';
 import { JwtAuthGuard } from '../../common/guards/jwt-auth.guard';
+import { RbacGuard } from '../../common/guards/rbac.guard';
+import { RequirePermission } from '../../common/decorators/require-permission.decorator';
 import { User } from '../user/entities/user.entity';
 import { CurrentUser } from '../../common/decorators/current-user.decorator';
-import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
+import { ApiTags, ApiOperation, ApiBearerAuth, ApiParam } from '@nestjs/swagger';
+import { ParseUuidPipe } from '../../common/pipes/parse-uuid.pipe';
+import { ProjectService } from '../project/project.service';
 
 @ApiTags('Transmittals')
 @ApiBearerAuth()
-@UseGuards(JwtAuthGuard)
+@UseGuards(JwtAuthGuard, RbacGuard)
 @Controller('transmittals')
 export class TransmittalController {
-  constructor(private readonly transmittalService: TransmittalService) {}
+  constructor(
+    private readonly transmittalService: TransmittalService,
+    private readonly projectService: ProjectService
+  ) {}
 
   @Post()
   @ApiOperation({ summary: 'Create a new Transmittal' })
+  @RequirePermission('document.create')
   create(@Body() createDto: CreateTransmittalDto, @CurrentUser() user: User) {
     return this.transmittalService.create(createDto, user);
   }
 
   @Get()
   @ApiOperation({ summary: 'Search Transmittals' })
-  findAll(@Query() searchDto: any) {
-    // Using any for simplicity as I can't import SearchTransmittalDto easily without checking its export
+  @RequirePermission('document.view')
+  async findAll(
+    @Query() searchDto: SearchTransmittalDto,
+    @CurrentUser() _user: User
+  ) {
+    // ADR-019: resolve projectUuid → internal INT projectId if needed
+    if (searchDto.projectUuid) {
+      const project = await this.projectService.findOneByUuid(
+        searchDto.projectUuid
+      );
+      searchDto.projectId = project.id;
+    }
     return this.transmittalService.findAll(searchDto);
   }
 
-  @Get(':id')
+  @Get(':uuid')
   @ApiOperation({ summary: 'Get Transmittal details' })
-  findOne(@Param('id', ParseIntPipe) id: number) {
-    return this.transmittalService.findOne(id);
+  @ApiParam({ name: 'uuid', description: 'Transmittal UUID (from correspondences.uuid)' })
+  @RequirePermission('document.view')
+  findOne(@Param('uuid', ParseUuidPipe) uuid: string) {
+    return this.transmittalService.findOneByUuid(uuid);
   }
 }

backend/src/modules/transmittal/transmittal.module.ts

@@ -8,6 +8,7 @@ import { CorrespondenceStatus } from '../correspondence/entities/correspondence-
 import { TransmittalService } from './transmittal.service';
 import { TransmittalController } from './transmittal.controller';
 import { DocumentNumberingModule } from '../document-numbering/document-numbering.module';
+import { ProjectModule } from '../project/project.module';
 import { UserModule } from '../user/user.module';
 import { SearchModule } from '../search/search.module';
 
@@ -21,6 +22,7 @@ import { SearchModule } from '../search/search.module';
       CorrespondenceStatus,
     ]),
     DocumentNumberingModule,
+    ProjectModule,
     UserModule,
     SearchModule,
   ],

backend/src/modules/transmittal/transmittal.service.ts

@@ -9,7 +9,11 @@ import { InjectRepository } from '@nestjs/typeorm';
 import { Repository, DataSource } from 'typeorm';
 import { Transmittal } from './entities/transmittal.entity';
 import { TransmittalItem } from './entities/transmittal-item.entity';
-import { CreateTransmittalDto } from './dto/create-transmittal.dto';
+import {
+  CreateTransmittalDto,
+  TransmittalItemDto,
+} from './dto/create-transmittal.dto';
+import { SearchTransmittalDto } from './dto/search-transmittal.dto';
 import { User } from '../user/entities/user.entity';
 import { DocumentNumberingService } from '../document-numbering/services/document-numbering.service';
 import { Correspondence } from '../correspondence/entities/correspondence.entity';
@@ -125,14 +129,7 @@ export class TransmittalService {
 
       // 6. Create Items
       if (createDto.items && createDto.items.length > 0) {
-        // Filter only items that are effectively correspondences (or mapped as such)
-        // For now, assuming itemId refers to correspondenceId if itemType is CORRESPONDENCE
-        // If itemType is DRAWING, we skip or throw error (Schema Restriction)
-        const validItems = createDto.items.filter(
-          (i) => i.itemType === 'CORRESPONDENCE' || i.itemType === 'DRAWING' // Temporary allow DRAWING if ID matches Correspondence? Unsafe.
-        );
-
-        const items = createDto.items.map((item) =>
+        const items = createDto.items.map((item: TransmittalItemDto) =>
           queryRunner.manager.create(TransmittalItem, {
             transmittalId: savedCorr.id,
             itemCorrespondenceId: item.itemId, // Direct mapping forced by Schema
@@ -160,6 +157,21 @@ export class TransmittalService {
     }
   }
 
+  /**
+   * ADR-019: Find Transmittal by parent Correspondence UUID (public identifier).
+   * Resolves correspondence.uuid → internal correspondenceId (INT)
+   */
+  async findOneByUuid(uuid: string) {
+    const correspondence = await this.dataSource.manager.findOne(
+      Correspondence,
+      { where: { uuid }, select: ['id'] }
+    );
+    if (!correspondence) {
+      throw new NotFoundException(`Transmittal with UUID ${uuid} not found`);
+    }
+    return this.findOne(correspondence.id);
+  }
+
   async findOne(id: number) {
     const transmittal = await this.transmittalRepo.findOne({
       where: { correspondenceId: id },
@@ -170,9 +182,9 @@ export class TransmittalService {
     return transmittal;
   }
 
-  async findAll(query: any) {
+  async findAll(query: SearchTransmittalDto) {
     const { page = 1, limit = 20, projectId, search } = query;
-    const skip = (page - 1) * limit;
+    const skip = ((page ?? 1) - 1) * (limit ?? 20);
 
     const queryBuilder = this.transmittalRepo
       .createQueryBuilder('transmittal')
@@ -205,8 +217,14 @@ export class TransmittalService {
       .take(limit)
       .getManyAndCount();
 
+    // ADR-019: Map correspondence.uuid to top level for frontend convenience
+    const mappedItems = items.map((t) => ({
+      ...t,
+      uuid: t.correspondence?.uuid,
+    }));
+
     return {
-      data: items,
+      data: mappedItems,
       meta: {
         total,
         page,

frontend/app/(admin)/admin/doc-control/numbering/page.tsx

@@ -31,7 +31,7 @@ export default function NumberingPage() {
   useEffect(() => {
     if (projects.length > 0 && !selectedProjectId) {
       const first = projects[0] as any;
-      setSelectedProjectId(String(first.id || first.uuid));
+      setSelectedProjectId(String(first.id ?? first.uuid));
     }
   }, [projects, selectedProjectId]);
 
@@ -41,7 +41,7 @@ export default function NumberingPage() {
   const [isTesting, setIsTesting] = useState(false);
   const [testTemplate, setTestTemplate] = useState<NumberingTemplate | null>(null);
 
-  const selectedProject = projects.find((p: any) => String(p.id || p.uuid) === selectedProjectId) as any;
+  const selectedProject = projects.find((p: any) => String(p.id ?? p.uuid) === selectedProjectId) as any;
   const selectedProjectName = selectedProject?.projectName || 'Unknown Project';
 
   // Master Data
@@ -109,7 +109,7 @@ export default function NumberingPage() {
             </SelectTrigger>
             <SelectContent>
               {(projects as any[]).map((project) => (
-                <SelectItem key={project.uuid || project.id} value={String(project.id || project.uuid)}>
+                <SelectItem key={project.id ?? project.uuid} value={String(project.id ?? project.uuid)}>
                   {project.projectCode} - {project.projectName}
                 </SelectItem>
               ))}
@@ -137,7 +137,7 @@ export default function NumberingPage() {
             <div className="lg:col-span-2 space-y-4">
               <div className="grid gap-4">
                 {templates
-                  .filter((t: any) => !t.projectId || String(t.projectId) === selectedProjectId || t.project?.uuid === selectedProjectId)
+                  .filter((t: any) => !t.projectId || String(t.project?.id ?? t.project?.uuid) === selectedProjectId || t.project?.uuid === selectedProjectId)
                   .map((template) => (
                     <Card key={template.id} className="p-6 hover:shadow-md transition-shadow">
                       <div className="flex justify-between items-start">

frontend/app/(dashboard)/rfas/[uuid]/page.tsx

@@ -6,11 +6,11 @@ import { useRFA } from "@/hooks/use-rfa";
 import { Loader2 } from "lucide-react";
 
 export default function RFADetailPage() {
-  const { id } = useParams();
+  const { uuid } = useParams();
 
-  if (!id) notFound();
+  if (!uuid) notFound();
 
-  const { data: rfa, isLoading, isError } = useRFA(String(id));
+  const { data: rfa, isLoading, isError } = useRFA(String(uuid));
 
   if (isLoading) {
     return (

frontend/app/(dashboard)/transmittals/[uuid]/page.tsx

@@ -22,12 +22,12 @@ import { toast } from "sonner";
 
 export default function TransmittalDetailPage() {
   const params = useParams();
-  const id = params.id as string;
+  const uuid = params.uuid as string;
 
   const { data: transmittal, isLoading, error } = useQuery<Transmittal>({
-    queryKey: ["transmittal", id],
-    queryFn: () => transmittalService.getById(id),
-    enabled: !!id,
+    queryKey: ["transmittal", uuid],
+    queryFn: () => transmittalService.getByUuid(uuid),
+    enabled: !!uuid,
   });
 
   const handlePrint = () => {
@@ -100,7 +100,7 @@ export default function TransmittalDetailPage() {
             <p className="text-sm text-muted-foreground">Generated From</p>
             {transmittal.correspondence ? (
               <Link
-                href={`/correspondences/${transmittal.correspondenceId}`}
+                href={`/correspondences/${transmittal.correspondence.uuid}`}
                 className="font-medium text-primary hover:underline"
               >
                 {transmittal.correspondence.correspondence_number}

frontend/app/(dashboard)/transmittals/page.tsx

@@ -1,22 +1,41 @@
 "use client";
 
+import { useState } from "react";
 import { useQuery } from "@tanstack/react-query";
 import { TransmittalList } from "@/components/transmittal/transmittal-list";
 import { transmittalService } from "@/lib/services/transmittal.service";
+import { projectService } from "@/lib/services/project.service";
 import { Button } from "@/components/ui/button";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
 import { Plus, RefreshCw } from "lucide-react";
 import Link from "next/link";
 import { TransmittalListResponse } from "@/types/transmittal";
 
 export default function TransmittalPage() {
+  // ADR-019: Dynamic project selection via UUID
+  const [selectedProjectUuid, setSelectedProjectUuid] = useState<string>("");
+
+  const { data: projectsData } = useQuery({
+    queryKey: ["projects-for-transmittals"],
+    queryFn: () => projectService.getAll(),
+  });
+  const projects = projectsData?.data || projectsData || [];
+
   const {
     data,
     isLoading,
     error,
     refetch,
   } = useQuery<TransmittalListResponse>({
-    queryKey: ["transmittals"],
-    queryFn: () => transmittalService.getAll({ projectId: 1 }),
+    queryKey: ["transmittals", selectedProjectUuid],
+    queryFn: () => transmittalService.getAll({ projectId: selectedProjectUuid }),
+    enabled: !!selectedProjectUuid,
   });
 
   return (
@@ -47,6 +66,23 @@ export default function TransmittalPage() {
         </div>
       </div>
 
+      {/* ADR-019: Project filter */}
+      <div className="flex items-center gap-3">
+        <span className="text-sm font-medium text-muted-foreground">Project:</span>
+        <Select value={selectedProjectUuid} onValueChange={setSelectedProjectUuid}>
+          <SelectTrigger className="w-[280px]">
+            <SelectValue placeholder="Select a project" />
+          </SelectTrigger>
+          <SelectContent>
+            {(Array.isArray(projects) ? projects : []).map((p: { uuid: string; projectName?: string; projectCode?: string }) => (
+              <SelectItem key={p.uuid} value={p.uuid}>
+                {p.projectName || p.projectCode}
+              </SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      </div>
+
       {error && (
         <div className="bg-destructive/10 text-destructive px-4 py-3 rounded-md">
           Failed to load transmittals.

frontend/components/numbering/template-tester.tsx

@@ -53,7 +53,7 @@ export function TemplateTester({ open, onOpenChange, template }: TemplateTesterP
   const [loading, setLoading] = useState(false);
 
   // Master Data Hooks
-  const projectId = template?.projectId || 1;
+  const projectId = (template as any)?.project?.id ?? (template as any)?.project?.uuid ?? template?.projectId ?? 1;
   const { data: organizations } = useOrganizations({ isActive: true });
   const { data: correspondenceTypes } = useCorrespondenceTypes();
   const { data: contracts } = useContracts(projectId);
@@ -117,7 +117,7 @@ export function TemplateTester({ open, onOpenChange, template }: TemplateTesterP
                                     </SelectTrigger>
                                     <SelectContent>
                                         {(organizations as Organization[])?.map((org) => (
-                                            <SelectItem key={org.uuid} value={(org.id ?? org.uuid).toString()}>
+                                            <SelectItem key={org.uuid} value={org.uuid}>
                                                 {org.organizationCode} - {org.organizationName}
                                             </SelectItem>
                                         ))}
@@ -137,7 +137,7 @@ export function TemplateTester({ open, onOpenChange, template }: TemplateTesterP
                                     </SelectTrigger>
                                     <SelectContent>
                                         {(organizations as Organization[])?.map((org) => (
-                                            <SelectItem key={org.uuid} value={(org.id ?? org.uuid).toString()}>
+                                            <SelectItem key={org.uuid} value={org.uuid}>
                                                 {org.organizationCode} - {org.organizationName}
                                             </SelectItem>
                                         ))}

frontend/components/rfas/detail.tsx

@@ -30,7 +30,7 @@ export function RFADetail({ data }: RFADetailProps) {
 
     processMutation.mutate(
       {
-        id: data.rfaId,
+        uuid: data.uuid,
         data: {
           action: apiAction,
           comments: comments,

frontend/components/rfas/form.tsx

@@ -19,6 +19,7 @@ import {
 import { useRouter } from "next/navigation";
 import { useCreateRFA } from "@/hooks/use-rfa";
 import { useDisciplines, useContracts } from "@/hooks/use-master-data";
+import { useProjects } from "@/hooks/use-projects";
 import { CreateRFADto } from "@/types/rfa";
 import { useState, useEffect } from "react";
 import { correspondenceService } from "@/lib/services/correspondence.service";
@@ -30,6 +31,7 @@ const rfaItemSchema = z.object({
   unit: z.string().min(1, "Unit is required"),
 });
 const rfaSchema = z.object({
+  projectId: z.string().min(1, "Project is required"), // ADR-019: UUID
   contractId: z.string().min(1, "Contract is required"),
   disciplineId: z.number().min(1, "Discipline is required"),
   rfaTypeId: z.number().min(1, "Type is required"),
@@ -49,9 +51,9 @@ export function RFAForm() {
   const router = useRouter();
   const createMutation = useCreateRFA();
 
-  // Dynamic Contract Loading (Default Project Context: 1)
-  const currentProjectId = 1;
-  const { data: contracts, isLoading: isLoadingContracts } = useContracts(currentProjectId);
+  // ADR-019: Dynamic project selection
+  const { data: projectsData, isLoading: isLoadingProjects } = useProjects();
+  const projects = projectsData?.data || projectsData || [];
 
   const {
     register,
@@ -63,6 +65,7 @@ export function RFAForm() {
   } = useForm<RFAFormData>({
     resolver: zodResolver(rfaSchema),
     defaultValues: {
+      projectId: "",
       contractId: "",
       disciplineId: 0,
       rfaTypeId: 0,
@@ -77,6 +80,9 @@ export function RFAForm() {
     },
   });
 
+  const selectedProjectId = watch("projectId");
+  const { data: contracts, isLoading: isLoadingContracts } = useContracts(selectedProjectId);
+
   const selectedContractId = watch("contractId");
   const { data: disciplines, isLoading: isLoadingDisciplines } = useDisciplines(selectedContractId);
 
@@ -97,7 +103,7 @@ export function RFAForm() {
     const fetchPreview = async () => {
        try {
          const res = await correspondenceService.previewNumber({
-             projectId: currentProjectId,
+             projectId: selectedProjectId,
              typeId: rfaTypeId, // RfaTypeId acts as TypeId
              disciplineId,
              // RFA uses 'TO' organization as recipient
@@ -112,7 +118,7 @@ export function RFAForm() {
 
     const timer = setTimeout(fetchPreview, 500);
     return () => clearTimeout(timer);
-  }, [rfaTypeId, disciplineId, toOrganizationId, currentProjectId]);
+  }, [rfaTypeId, disciplineId, toOrganizationId, selectedProjectId]);
 
   const { fields, append, remove } = useFieldArray({
     control,
@@ -122,7 +128,7 @@ export function RFAForm() {
   const onSubmit = (data: RFAFormData) => {
     const payload: CreateRFADto = {
       ...data,
-      projectId: currentProjectId,
+      // ADR-019: projectId is already a UUID string from the form
     };
     createMutation.mutate(payload as any, {
       onSuccess: () => {
@@ -178,19 +184,45 @@ export function RFAForm() {
             <Input id="description" {...register("description")} placeholder="Enter key description" />
           </div>
 
+          {/* ADR-019: Project selector */}
+          <div>
+            <Label>Project *</Label>
+            <Select
+              onValueChange={(val) => {
+                setValue("projectId", val);
+                setValue("contractId", ""); // Reset contract when project changes
+              }}
+              disabled={isLoadingProjects}
+            >
+              <SelectTrigger>
+                <SelectValue placeholder={isLoadingProjects ? "Loading..." : "Select Project"} />
+              </SelectTrigger>
+              <SelectContent>
+                {(Array.isArray(projects) ? projects : []).map((p: { uuid: string; projectName?: string; projectCode?: string }) => (
+                  <SelectItem key={p.uuid} value={p.uuid}>
+                    {p.projectName || p.projectCode}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            {errors.projectId && (
+              <p className="text-sm text-destructive mt-1">{errors.projectId.message}</p>
+            )}
+          </div>
+
           <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
             <div>
               <Label>Contract *</Label>
               <Select
                 onValueChange={(val) => setValue("contractId", val)}
-                disabled={isLoadingContracts}
+                disabled={!selectedProjectId || isLoadingContracts}
               >
                 <SelectTrigger>
                   <SelectValue placeholder={isLoadingContracts ? "Loading..." : "Select Contract"} />
                 </SelectTrigger>
                 <SelectContent>
-                  {contracts?.map((c: any) => (
-                    <SelectItem key={c.id} value={String(c.id)}>
+                  {contracts?.map((c: { uuid: string; contractName?: string; name?: string; contractCode?: string }) => (
+                    <SelectItem key={c.uuid} value={c.uuid}>
                       {c.contractName || c.name || c.contractCode}
                     </SelectItem>
                   ))}

frontend/components/rfas/list.tsx

@@ -89,7 +89,7 @@ export function RFAList({ data }: RFAListProps) {
 
         return (
           <div className="flex gap-2">
-            <Link href={`/rfas/${row.original.id}`}>
+            <Link href={`/rfas/${row.original.uuid}`}>
               <Button variant="ghost" size="icon" title="View Details">
                 <Eye className="h-4 w-4" />
               </Button>
@@ -97,7 +97,7 @@ export function RFAList({ data }: RFAListProps) {
              <Button variant="ghost" size="icon" title="View File" onClick={handleViewFile}>
                 <FileText className="h-4 w-4" />
               </Button>
-            <Link href={`/rfas/${row.original.id}/edit`}>
+            <Link href={`/rfas/${row.original.uuid}/edit`}>
                <Button variant="ghost" size="icon" title="Edit">
                 <Edit className="h-4 w-4" />
               </Button>

frontend/components/transmittal/transmittal-form.tsx

@@ -9,6 +9,8 @@ import { z } from "zod";
 
 import { transmittalService } from "@/lib/services/transmittal.service";
 import { correspondenceService } from "@/lib/services/correspondence.service";
+import { projectService } from "@/lib/services/project.service";
+import { organizationService } from "@/lib/services/organization.service";
 import { CreateTransmittalDto } from "@/types/dto/transmittal/transmittal.dto";
 
 // UI Components
@@ -59,6 +61,8 @@ const itemSchema = z.object({
 
 // Main form schema
 const formSchema = z.object({
+  projectId: z.string().min(1, "Project is required"), // ADR-019: UUID
+  recipientOrganizationId: z.string().min(1, "Recipient is required"), // ADR-019: UUID
   correspondenceId: z.string().min(1, "Correspondence is required"), // ADR-019: UUID string
   subject: z.string().min(1, "Subject is required"),
   purpose: z.enum(["FOR_APPROVAL", "FOR_INFORMATION", "FOR_REVIEW", "OTHER"]),
@@ -75,6 +79,9 @@ export function TransmittalForm() {
   const form = useForm<FormData>({
     resolver: zodResolver(formSchema),
     defaultValues: {
+      projectId: "",
+      recipientOrganizationId: "",
+      correspondenceId: "",
       subject: "",
       purpose: "FOR_APPROVAL",
       remarks: "",
@@ -89,6 +96,19 @@ export function TransmittalForm() {
     name: "items",
   });
 
+  // ADR-019: Fetch projects and organizations for UUID-based selectors
+  const { data: projectsData, isLoading: isLoadingProjects } = useQuery({
+    queryKey: ["projects-dropdown"],
+    queryFn: () => projectService.getAll(),
+  });
+  const projectsList = projectsData?.data || projectsData || [];
+
+  const { data: orgsData, isLoading: isLoadingOrgs } = useQuery({
+    queryKey: ["organizations-dropdown"],
+    queryFn: () => organizationService.getAll(),
+  });
+  const orgsList = orgsData?.data || orgsData || [];
+
   // Fetch correspondences (for header linkage)
   const { data: correspondences } = useQuery({
     queryKey: ["correspondences-dropdown"],
@@ -99,7 +119,8 @@ export function TransmittalForm() {
     mutationFn: (data: CreateTransmittalDto) => transmittalService.create(data),
     onSuccess: (result) => {
       toast.success("Transmittal created successfully");
-      router.push(`/transmittals/${result.id}`);
+      // ADR-019: Navigate using UUID from correspondence
+      router.push(`/transmittals/${result.correspondence?.uuid || result.uuid}`);
     },
     onError: () => {
       toast.error("Failed to create transmittal");
@@ -107,13 +128,13 @@ export function TransmittalForm() {
   });
 
   const onSubmit = (data: FormData) => {
-    // Better fix: Add missing recipientOrganizationId mock
+    // ADR-019: All IDs are now UUID strings from the form
     const cleanPayload: CreateTransmittalDto = {
-        projectId: 1,
-        recipientOrganizationId: 99, // Mock
+        projectId: data.projectId,
+        recipientOrganizationId: data.recipientOrganizationId,
         correspondenceId: data.correspondenceId,
         subject: data.subject,
-        purpose: data.purpose as any,
+        purpose: data.purpose as string,
         remarks: data.remarks,
         items: data.items.map(item => ({
              itemType: item.itemType,
@@ -139,6 +160,59 @@ export function TransmittalForm() {
             <CardTitle>Transmittal Details</CardTitle>
           </CardHeader>
           <CardContent className="space-y-6">
+            {/* ADR-019: Project & Recipient Organization selectors */}
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+              <FormField
+                control={form.control}
+                name="projectId"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>Project</FormLabel>
+                    <Select onValueChange={field.onChange} value={field.value} disabled={isLoadingProjects}>
+                      <FormControl>
+                        <SelectTrigger>
+                          <SelectValue placeholder={isLoadingProjects ? "Loading..." : "Select Project"} />
+                        </SelectTrigger>
+                      </FormControl>
+                      <SelectContent>
+                        {(Array.isArray(projectsList) ? projectsList : []).map((p: { uuid: string; projectName?: string; projectCode?: string }) => (
+                          <SelectItem key={p.uuid} value={p.uuid}>
+                            {p.projectName || p.projectCode}
+                          </SelectItem>
+                        ))}
+                      </SelectContent>
+                    </Select>
+                    <FormMessage />
+                  </FormItem>
+                )}
+              />
+
+              <FormField
+                control={form.control}
+                name="recipientOrganizationId"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>Recipient Organization</FormLabel>
+                    <Select onValueChange={field.onChange} value={field.value} disabled={isLoadingOrgs}>
+                      <FormControl>
+                        <SelectTrigger>
+                          <SelectValue placeholder={isLoadingOrgs ? "Loading..." : "Select Organization"} />
+                        </SelectTrigger>
+                      </FormControl>
+                      <SelectContent>
+                        {(Array.isArray(orgsList) ? orgsList : []).map((o: { uuid: string; organizationName?: string; orgCode?: string }) => (
+                          <SelectItem key={o.uuid} value={o.uuid}>
+                            {o.organizationName || o.orgCode}
+                          </SelectItem>
+                        ))}
+                      </SelectContent>
+                    </Select>
+                    <FormMessage />
+                  </FormItem>
+                )}
+              />
+            </div>
+
             <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
               {/* Linked Correspondence (Ref No) */}
               <FormField

frontend/components/transmittal/transmittal-list.tsx

@@ -59,7 +59,7 @@ export function TransmittalList({ data }: TransmittalListProps) {
       cell: ({ row }) => {
         const item = row.original;
         return (
-          <Link href={`/transmittals/${item.id}`}>
+          <Link href={`/transmittals/${item.uuid}`}>
             <Button variant="ghost" size="icon" title="View Details">
               <Eye className="h-4 w-4" />
             </Button>

frontend/hooks/use-rfa.ts

@@ -11,7 +11,7 @@ export const rfaKeys = {
   lists: () => [...rfaKeys.all, 'list'] as const,
   list: (params: SearchRfaDto) => [...rfaKeys.lists(), params] as const,
   details: () => [...rfaKeys.all, 'detail'] as const,
-  detail: (id: number | string) => [...rfaKeys.details(), id] as const,
+  detail: (uuid: string) => [...rfaKeys.details(), uuid] as const,
 };
 
 // --- Queries ---
@@ -24,11 +24,11 @@ export function useRFAs(params: SearchRfaDto) {
   });
 }
 
-export function useRFA(id: number | string) {
+export function useRFA(uuid: string) {
   return useQuery({
-    queryKey: rfaKeys.detail(id),
-    queryFn: () => rfaService.getById(id),
-    enabled: !!id,
+    queryKey: rfaKeys.detail(uuid),
+    queryFn: () => rfaService.getByUuid(uuid),
+    enabled: !!uuid,
   });
 }
 
@@ -55,11 +55,11 @@ export function useUpdateRFA() {
   const queryClient = useQueryClient();
 
   return useMutation({
-    mutationFn: ({ id, data }: { id: number | string; data: UpdateRfaDto }) =>
-      rfaService.update(id, data),
-    onSuccess: (_, { id }) => {
+    mutationFn: ({ uuid, data }: { uuid: string; data: UpdateRfaDto }) =>
+      rfaService.update(uuid, data),
+    onSuccess: (_, { uuid }) => {
       toast.success('RFA updated successfully');
-      queryClient.invalidateQueries({ queryKey: rfaKeys.detail(id) });
+      queryClient.invalidateQueries({ queryKey: rfaKeys.detail(uuid) });
       queryClient.invalidateQueries({ queryKey: rfaKeys.lists() });
     },
     onError: (error: unknown) => {
@@ -74,11 +74,11 @@ export function useProcessRFA() {
   const queryClient = useQueryClient();
 
   return useMutation({
-    mutationFn: ({ id, data }: { id: number | string; data: WorkflowActionDto }) =>
-      rfaService.processWorkflow(id, data),
-    onSuccess: (_, { id }) => {
+    mutationFn: ({ uuid, data }: { uuid: string; data: WorkflowActionDto }) =>
+      rfaService.processWorkflow(uuid, data),
+    onSuccess: (_, { uuid }) => {
       toast.success('Workflow status updated successfully');
-      queryClient.invalidateQueries({ queryKey: rfaKeys.detail(id) });
+      queryClient.invalidateQueries({ queryKey: rfaKeys.detail(uuid) });
       queryClient.invalidateQueries({ queryKey: rfaKeys.lists() });
     },
     onError: (error: unknown) => {

frontend/lib/services/rfa.service.ts

@@ -26,9 +26,9 @@ export const rfaService = {
   /**
    * ดึงรายละเอียด RFA และประวัติ Workflow
    */
-  getById: async (id: string | number) => {
-    // GET /rfas/:id
-    const response = await apiClient.get(`/rfas/${id}`);
+  getByUuid: async (uuid: string) => {
+    // GET /rfas/:uuid (ADR-019)
+    const response = await apiClient.get(`/rfas/${uuid}`);
     return response.data;
   },
 
@@ -44,26 +44,27 @@ export const rfaService = {
   /**
    * แก้ไข RFA (เฉพาะสถานะ Draft)
    */
-  update: async (id: string | number, data: UpdateRfaDto) => {
-    // PUT /rfas/:id
-    const response = await apiClient.put(`/rfas/${id}`, data);
+  update: async (uuid: string, data: UpdateRfaDto) => {
+    // PUT /rfas/:uuid (ADR-019)
+    const response = await apiClient.put(`/rfas/${uuid}`, data);
     return response.data;
   },
 
   /**
    * ดำเนินการ Workflow (อนุมัติ / ตีกลับ / ส่งต่อ)
    */
-  processWorkflow: async (id: string | number, actionData: WorkflowActionDto) => {
-    // POST /rfas/:id/workflow
-    const response = await apiClient.post(`/rfas/${id}/workflow`, actionData);
+  processWorkflow: async (uuid: string, actionData: WorkflowActionDto) => {
+    // POST /rfas/:uuid/workflow (ADR-019)
+    const response = await apiClient.post(`/rfas/${uuid}/workflow`, actionData);
     return response.data;
   },
 
   /**
    * (Optional) ลบ RFA (Soft Delete)
    */
-  delete: async (id: string | number) => {
-    const response = await apiClient.delete(`/rfas/${id}`);
+  delete: async (uuid: string) => {
+    // DELETE /rfas/:uuid (ADR-019)
+    const response = await apiClient.delete(`/rfas/${uuid}`);
     return response.data;
   }
 };

frontend/lib/services/transmittal.service.ts

@@ -17,11 +17,11 @@ export const transmittalService = {
   },
 
   /**
-   * ดึงรายละเอียด Transmittal ตาม ID
+   * ดึงรายละเอียด Transmittal ตาม UUID (ADR-019)
    */
-  getById: async (id: string | number) => {
-    // GET /transmittals/:id
-    const response = await apiClient.get(`/transmittals/${id}`);
+  getByUuid: async (uuid: string) => {
+    // GET /transmittals/:uuid
+    const response = await apiClient.get(`/transmittals/${uuid}`);
     return response.data;
   },
 
@@ -37,18 +37,18 @@ export const transmittalService = {
   /**
    * แก้ไขข้อมูล Transmittal (เฉพาะ Draft)
    */
-  update: async (id: string | number, data: UpdateTransmittalDto) => {
-    // PUT /transmittals/:id
-    const response = await apiClient.put(`/transmittals/${id}`, data);
+  update: async (uuid: string, data: UpdateTransmittalDto) => {
+    // PUT /transmittals/:uuid (ADR-019)
+    const response = await apiClient.put(`/transmittals/${uuid}`, data);
     return response.data;
   },
 
   /**
    * ลบเอกสาร (Soft Delete)
    */
-  delete: async (id: string | number) => {
-    // DELETE /transmittals/:id
-    const response = await apiClient.delete(`/transmittals/${id}`);
+  delete: async (uuid: string) => {
+    // DELETE /transmittals/:uuid (ADR-019)
+    const response = await apiClient.delete(`/transmittals/${uuid}`);
     return response.data;
   }
 };

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "lcbp3-frontend",
-  "version": "1.5.1",
+  "version": "1.8.0",
   "private": true,
   "scripts": {
     "dev": "next dev",

frontend/types/rfa.ts

@@ -8,7 +8,8 @@ export interface RFAItem {
 }
 
 export interface RFA {
-  id: number; // Shared PK with Correspondence
+  uuid: string; // ADR-019: from correspondence.uuid
+  id?: number; // Excluded from API responses (ADR-019)
   rfaTypeId: number;
   createdBy: number;
   disciplineId?: number;
@@ -35,12 +36,14 @@ export interface RFA {
   };
   // Shared Correspondence Relation
   correspondence?: {
-    id: number;
+    uuid: string;
+    id?: number; // Excluded from API responses (ADR-019)
     correspondenceNumber: string;
     projectId: number;
     originatorId?: number;
     createdAt?: string;
     project?: {
+      uuid: string;
       projectName: string;
       projectCode: string;
     };

frontend/types/transmittal.ts

@@ -28,8 +28,9 @@ export interface TransmittalItem {
  * Main Transmittal entity
  */
 export interface Transmittal {
-  id: number;
-  correspondenceId: number;
+  uuid: string; // ADR-019: from correspondence.uuid
+  id?: number; // Excluded from API responses (ADR-019)
+  correspondenceId?: number | string;
   transmittalNo: string;
   subject: string;
   purpose?: TransmittalPurpose;
@@ -38,7 +39,8 @@ export interface Transmittal {
   // Joined relations from API
   items?: TransmittalItem[];
   correspondence?: {
-    id: number;
+    uuid: string;
+    id?: number; // Excluded from API responses (ADR-019)
     correspondence_number: string;
     project_id: number;
   };
@@ -70,9 +72,9 @@ export interface CreateTransmittalItemDto {
  * DTO for creating a transmittal
  */
 export interface CreateTransmittalDto {
-  projectId?: number;
-  recipientOrganizationId?: number;
-  correspondenceId: number;
+  projectId?: number | string; // ADR-019: Accept UUID
+  recipientOrganizationId?: number | string; // ADR-019: Accept UUID
+  correspondenceId: number | string; // ADR-019: Accept UUID
   subject: string;
   purpose?: TransmittalPurpose;
   remarks?: string;
@@ -85,6 +87,6 @@ export interface CreateTransmittalDto {
 export interface SearchTransmittalDto {
   page?: number;
   limit?: number;
-  projectId?: number;
+  projectId?: number | string; // ADR-019: Accept UUID
   search?: string;
 }

lcbp3.code-workspace

@@ -928,6 +928,6 @@
     ],
   },
   "extensions": {
-    "recommendations": ["jlcodes.antigravity-cockpit"],
+    "recommendations": [],
   },
 }