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/accountOverview.controller.js

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+const db=require("../models");exports.overview=async(req,res,next)=>{try{const userId=req.user.id,[recentOrders,orderCount,wishlistCount,defaultAddress,loyalty,openTickets,vouchers]=await Promise.all([db.Order.findAll({where:{user_id:userId},attributes:["id","order_number","status","payment_status","grand_total","currency","placed_at"],order:[["placed_at","DESC"]],limit:5}),db.Order.count({where:{user_id:userId}}),db.WishlistItem.count({where:{user_id:userId}}),db.Address.findOne({where:{user_id:userId,is_default:true},attributes:{exclude:["user_id"]}}),db.LoyaltyAccount.findOne({where:{user_id:userId},attributes:["available_points","current_tier_id","lifetime_points_earned"]}),db.SupportTicket.count({where:{customer_user_id:userId,status:["OPEN","ASSIGNED","WAITING_FOR_CUSTOMER","WAITING_FOR_SUPPORT"]}}),db.CustomerCouponEntitlement.count({where:{user_id:userId,status:"ACTIVE"}})]);res.json({success:true,data:{recentOrders,orderCount,wishlistCount,defaultAddress,loyalty:loyalty&&{availablePoints:loyalty.available_points,lifetimePointsEarned:loyalty.lifetime_points_earned,tierId:loyalty.current_tier_id},availableVoucherCount:vouchers,openSupportTicketCount:openTickets}});}catch(e){next(e);}};

app/controllers/analytics.controller.js

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+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);

app/controllers/metrics.controller.js

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+const metrics=require("../services/metrics.service");exports.read=(_req,res)=>res.type("text/plain; version=0.0.4").send(metrics.render());