feat: Add Phase 11 analytics and production readiness features

- Introduced new endpoints for account overview, analytics, and metrics.
- Implemented authorization matrix and backup/restore documentation.
- Added smoke test script and updated package dependencies.
- Created detailed production checklist and runbook for deployment.
- Established cron operations and notification event matrix documentation.
- Enhanced security and validation audits for analytics and metrics services.
- Added unit tests for analytics and metrics functionalities.

app.js

@@ -18,6 +18,7 @@ const { authorizedAccountType } = require("./app/middleware/permission.middlewar
 const requestId = require("./app/middleware/requestId.middleware");
 const { generalApiLimiter } = require("./app/middleware/rateLimit.middleware");
 const { notFound, errorHandler } = require("./app/middleware/error.middleware");
+const metrics = require("./app/services/metrics.service");
 
 const app = express();
 const trustProxy = Number(process.env.TRUST_PROXY || 0);
@@ -25,6 +26,7 @@ if (trustProxy > 0) app.set("trust proxy", trustProxy);
 
 app.disable("x-powered-by");
 app.use(requestId);
+app.use(metrics.middleware);
 app.use(helmet({
   contentSecurityPolicy: false,
   hsts: process.env.NODE_ENV === "production" ? undefined : false,