feat(phase-6): Bulk CSV processing and background worker implementation

- Add BulkJob model to Prisma schema with relations
- Implement BulkProcessorService for CSV parsing and job management
- Create BulkTrackingWorker for background processing with BullMQ
- Add comprehensive bulk API routes (upload, jobs, progress, export)
- Integrate multer for CSV file uploads with validation
- Add job progress tracking and estimation
- Implement CSV export functionality for results
- Add queue statistics and cleanup endpoints
- Create shared types for bulk processing
- Add comprehensive test suite for all bulk functionality
- Implement graceful worker shutdown and error handling
- Add rate limiting and authentication for all bulk endpoints

Backward compatibility: Maintained for /api/track and /api/v1/track

apps/api/src/index.ts

@@ -19,6 +19,7 @@ import authRoutes from './routes/auth.routes';
 import trackingRoutes from './routes/tracking.routes';
 import analysisRoutes from './routes/analysis.routes';
 import exportRoutes from './routes/export.routes';
+import bulkRoutes from './routes/bulk.routes';
 
 const app = express();
 const PORT = process.env.PORT || 3333;
@@ -77,6 +78,7 @@ app.use('/api/v2/analyze', analysisRoutes);
 
 // Export routes (v2)
 app.use('/api/v2/export', exportRoutes);
+app.use('/api/v2/bulk', bulkRoutes);
 
 // Health check endpoint
 app.get('/health', (req, res) => {