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/controllers/analytics.controller.js

@@ -0,0 +1 @@
+const a=require("../services/analytics/analytics.service");const run=fn=>async(req,res,next)=>{try{res.json({success:true,data:await fn(req.query)});}catch(e){next(e);}};exports.overview=run(a.overview);exports.sales=run(a.sales);exports.orders=run(a.orders);exports.customers=run(a.customers);exports.products=run(a.products);exports.inventory=run(a.inventory);exports.payments=run(a.payments);exports.delivery=run(a.delivery);exports.loyalty=run(a.loyalty);exports.support=run(a.support);exports.recommendations=run(a.recommendations);