feat: Fleet/Collector/엣지 배포 관련 누적 작업 일괄 커밋

이전 세션들에서 작업된 아래 범위를 모두 포함:

Fleet 서브시스템 (src/fleet/)
- fleetDeviceService / fleetCommandService / fleetDeploymentService / fleetReleaseService
- fleetMetricsService, fleetScriptService, fleetEdgeConfigService
- Edge 디바이스 관리, 커맨드 발행, 배포/릴리스, 스크립트 동기화

Collector 확장
- centralMqttForwarder / centralForwarderConfigService
- equipmentStateService, pythonHookRunner, scriptCache
- Modbus/OPC-UA/S7/XGT 프로토콜 클라이언트
- targetDbIntrospection (저장 DB 조회)

Routes / API
- automationDashboardRoutes, centralForwarderRoutes, equipmentStateRoutes

DB
- importEdgeConfig (Python cached config → Pipeline DB)
- seedDataSources (external_db_connections 초기 시드)

엣지 배포 리소스
- docker/edge/Dockerfile.backend.prod, Dockerfile.frontend.prod
- docker/edge/docker-compose.edge.yml

프론트엔드
- admin/automaticMng (centralForwarder, dashboard, equipmentState)
- admin/fleet (commands, devices, deployments, releases, scripts, alerts)
- admin/pipeline-device 개선 (저장 DB 드롭다운, 태그 매핑 등)
- ExternalDbConnectionModal, ScriptsManagerDialog 등 신규 컴포넌트
- lib/api: automationDashboard, centralForwarder, equipmentState, fleet

docs/
- EDGE_SERVER_STRUCTURE, FLEET_COMPLETE, FLEET_EDGE_INTEGRATION, FLEET_HOOK_INTEGRATION

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

backend-node/package.json

@@ -24,12 +24,15 @@
   "license": "ISC",
   "dependencies": {
     "@types/mssql": "^9.1.8",
+    "aedes": "^0.51.3",
+    "aedes-server-factory": "^0.2.1",
     "axios": "^1.11.0",
     "bcryptjs": "^2.4.3",
     "bwip-js": "^4.8.0",
     "cheerio": "^1.2.0",
     "compression": "^1.7.4",
     "cors": "^2.8.5",
+    "dockerode": "^4.0.10",
     "docx": "^9.5.1",
     "dotenv": "^16.3.1",
     "express": "^4.18.2",
@@ -44,6 +47,7 @@
     "joi": "^17.11.0",
     "jsonwebtoken": "^9.0.2",
     "mailparser": "^3.7.5",
+    "mqtt": "^5.15.1",
     "mssql": "^11.0.1",
     "multer": "^1.4.5-lts.1",
     "mysql2": "^3.15.0",
@@ -65,6 +69,7 @@
     "@types/bwip-js": "^3.2.3",
     "@types/compression": "^1.7.5",
     "@types/cors": "^2.8.17",
+    "@types/dockerode": "^4.0.1",
     "@types/express": "^4.17.21",
     "@types/fs-extra": "^11.0.4",
     "@types/imap": "^0.8.42",