feat(ai): implement unified prompt management UX/UI (ADR-037)

- Add context config endpoints (GET/PUT /api/ai/prompts/:type/:version/context-config)
- Add execution profile endpoints (CRUD /api/ai/execution-profiles)
- Add sandbox RAG Prep endpoint (POST /api/ai/admin/sandbox/rag-prep)
- Create Prompt Management UI with multi-type support
- Add ContextConfigEditor, PromptEditor, RuntimeParametersPanel components
- Add SandboxTabs for 3-step workflow (OCR, Extract, RAG Prep)
- Add database deltas for ai_execution_profiles and additional prompt types
- Update quickstart.md with production backend URLs
- Add comprehensive test coverage for new features

frontend/lib/services/__tests__/rfa.service.test.ts

@@ -64,7 +64,7 @@ describe('rfaService', () => {
     it('ควรส่ง RFA เข้า workflow', async () => {
       const mockResponse = { data: { publicId: 'uuid-1', status: 'SUBMITTED' } };
       vi.mocked(apiClient.post).mockResolvedValue(mockResponse);
-      const submitDto = { templateId: 1, reviewTeamPublicId: 'uuid-team' };
+      const submitDto = { reviewTeamPublicId: 'uuid-team' };
       const result = await rfaService.submit('uuid-1', submitDto);
       expect(apiClient.post).toHaveBeenCalledWith('/rfas/uuid-1/submit', submitDto);
       expect(result).toEqual(mockResponse.data);