feat(monitoring): implement comprehensive monitoring service with Prometheus, Sentry, OpenTelemetry, and health checks

- Complete Prometheus metrics collection for business and system metrics
- Comprehensive Sentry error tracking with context and filtering
- OpenTelemetry distributed tracing with auto-instrumentation
- Health monitoring service with system checks and external dependencies
- Integrated monitoring service with Express endpoints for health, metrics, and debugging

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

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

packages/monitoring/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "@seo-image-renamer/monitoring",
+  "version": "1.0.0",
+  "description": "Comprehensive monitoring and observability package",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:coverage": "jest --coverage"
+  },
+  "dependencies": {
+    "@nestjs/common": "^10.0.0",
+    "@nestjs/core": "^10.0.0",
+    "@nestjs/config": "^3.0.0",
+    "@nestjs/terminus": "^10.0.0",
+    "@sentry/node": "^7.116.0",
+    "@sentry/tracing": "^7.116.0",
+    "@opentelemetry/api": "^1.8.0",
+    "@opentelemetry/sdk-node": "^0.52.0",
+    "@opentelemetry/auto-instrumentations-node": "^0.45.0",
+    "@opentelemetry/exporter-jaeger": "^1.24.0",
+    "@opentelemetry/exporter-prometheus": "^0.51.0",
+    "@opentelemetry/semantic-conventions": "^1.22.0",
+    "prom-client": "^15.1.0",
+    "express-prometheus-middleware": "^1.2.0",
+    "node-cron": "^3.0.3",
+    "ioredis": "^5.3.2",
+    "winston": "^3.13.0",
+    "@prisma/client": "^5.15.0",
+    "axios": "^1.7.2"
+  },
+  "devDependencies": {
+    "@types/node": "^20.0.0",
+    "@types/jest": "^29.0.0",
+    "@types/node-cron": "^3.0.11",
+    "typescript": "^5.0.0",
+    "jest": "^29.0.0",
+    "ts-jest": "^29.0.0"
+  },
+  "peerDependencies": {
+    "@nestjs/common": "^10.0.0",
+    "@nestjs/core": "^10.0.0"
+  }
+}