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/tsconfig.json

@@ -0,0 +1,18 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist", "**/*.spec.ts", "**/*.test.ts"]
+}