feat(api): add REST API with 45+ endpoints

- Add workers API for pool management
- Add jobs API for queue operations
- Add scan-rules API for CRUD operations
- Add scanner API for control and status
- Add settings API for configuration management
- Add system API for resource monitoring
- Add filesystem API for path browsing
- Add setup wizard API endpoint

backend/api/__init__.py

@@ -1 +1,17 @@
-"""TranscriptorIO API Module."""
+"""API module for TranscriptorIO backend."""
+from backend.api.workers import router as workers_router
+from backend.api.jobs import router as jobs_router
+from backend.api.scan_rules import router as scan_rules_router
+from backend.api.scanner import router as scanner_router
+from backend.api.settings import router as settings_router
+from backend.api.setup_wizard import router as setup_router
+
+__all__ = [
+    "workers_router",
+    "jobs_router",
+    "scan_rules_router",
+    "scanner_router",
+    "settings_router",
+    "setup_router",
+]
+