feat(backend): Implement Audit Query API (CQRS) - Sprint 2 Story 2 Task 4

Implemented complete REST API for querying audit logs using CQRS pattern.

Features:
- GET /api/v1/auditlogs/{id} - Retrieve specific audit log
- GET /api/v1/auditlogs/entity/{entityType}/{entityId} - Get entity history
- GET /api/v1/auditlogs/recent?count=100 - Get recent logs (max 1000)

Implementation:
- AuditLogDto - Transfer object for query results
- GetAuditLogByIdQuery + Handler
- GetAuditLogsByEntity Query + Handler
- GetRecentAuditLogsQuery + Handler
- AuditLogsController with 3 endpoints

Technical:
- Multi-tenant isolation via Global Query Filters (automatic)
- Read-only query endpoints (no mutations)
- Swagger/OpenAPI documentation
- Proper HTTP status codes (200 OK, 404 Not Found)
- Cancellation token support
- Primary constructor pattern (modern C# style)

Tests: Build succeeded, no new test failures introduced

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

colaflow-api/src/Modules/ProjectManagement/ProjectManagementModule.cs

@@ -10,6 +10,7 @@ using ColaFlow.Modules.ProjectManagement.Application.Commands.CreateProject;
 using ColaFlow.Modules.ProjectManagement.Application.Common.Interfaces;
 using ColaFlow.Modules.ProjectManagement.Domain.Repositories;
 using ColaFlow.Modules.ProjectManagement.Infrastructure.Persistence;
+using ColaFlow.Modules.ProjectManagement.Infrastructure.Persistence.Interceptors;
 using ColaFlow.Modules.ProjectManagement.Infrastructure.Repositories;
 using ColaFlow.Modules.ProjectManagement.Infrastructure.Services;
 
@@ -25,18 +26,25 @@ public class ProjectManagementModule : IModule
 
     public void RegisterServices(IServiceCollection services, IConfiguration configuration)
     {
-        // Register DbContext
+        // Register tenant context service (must be before DbContext for interceptor)
+        services.AddScoped<ITenantContext, TenantContext>();
+
+        // Register audit interceptor
+        services.AddScoped<AuditInterceptor>();
+
+        // Register DbContext with interceptor
         var connectionString = configuration.GetConnectionString("PMDatabase");
-        services.AddDbContext<PMDbContext>(options =>
-            options.UseNpgsql(connectionString));
+        services.AddDbContext<PMDbContext>((serviceProvider, options) =>
+        {
+            var auditInterceptor = serviceProvider.GetRequiredService<AuditInterceptor>();
+            options.UseNpgsql(connectionString)
+                   .AddInterceptors(auditInterceptor);
+        });
 
         // Register repositories
         services.AddScoped<IProjectRepository, ProjectRepository>();
         services.AddScoped<IUnitOfWork, UnitOfWork>();
 
-        // Register tenant context service
-        services.AddScoped<ITenantContext, TenantContext>();
-
         // Note: IProjectNotificationService is registered in the API layer (Program.cs)
         // as it depends on IRealtimeNotificationService which is API-specific