Zumri-Backend/Documentation/PHASE_11_PRODUCTION_READINESS.md

ZUMRI Phase 11 Analytics and Production Readiness

Objective and Baseline

The final main backend phase adds bounded operational analytics, account overview, security/dependency hardening, observability, API/deployment operations, and an evidence-based readiness assessment. Baseline: Node 22.12.0, npm 10.9.0, 28 suites/145 tests, 373 syntax files, and 30 audit advisories before upgrades.

Architecture Reviewed

Current source comprises identity/RBAC, customer/business, catalogue/localization, inventory/pricing/merchandising, shopping/checkout, commerce, logistics, loyalty/wholesale, support/help/newsletter/recommendations, shared uploads/notifications/audit/documents, four queues/workers, five cron families, eleven forward-only phase migrations, Docker/Compose and Nginx samples. Mounted routes retain legacy /api and preferred /api/v1 prefixes.

Admin Analytics and Account Overview

Permission-separated endpoints cover dashboard, sales, orders, customers, products, inventory, payments, delivery, loyalty, support, and recommendation signals. All use SQL aggregation and bounded results; date-based reports default to 30 days UTC and reject ranges over 366 days. Revenue means paid/captured payment amount; refunds mean completed refunds; net is their difference. Profit/valuation and recommendation conversion are explicitly unavailable. /account/overview is self-only and combines recent orders, wishlist, default address, loyalty, vouchers, and open support count. Existing wholesale dashboard remains authoritative.

Notification Completion

The matrix documents actual Phase 2 delivery and domain gaps. Push is not implemented. High-value commerce/logistics/support fanout remains implemented-unverified or absent and is not falsely claimed.

Security, Authorization, IDOR and Validation Audit

Central authentication checks issuer/audience-signed JWT claims, active user/session, rotation/token version and permissions. Admin analytics/metrics are permission gated. Customer domains derive identity or constrain queries by owner. Phase 10 support attachments, messages, internal visibility and resource links have independent authorization. Strict Zod schemas protect new mutations. Existing route source remains authoritative; full live authenticated IDOR and concurrency execution is outstanding.

Cookies plus Bearer tokens serve browser/mobile clients. CORS is restricted to FRONTEND_URL with credentials; cookie flags remain part of the Phase 1 implementation. Helmet defaults are retained except CSP (disabled for compatibility) and non-production HSTS. Production must validate same-site/origin behavior behind the exact proxy topology. Logs use request IDs and avoid request bodies; error middleware suppresses production stack/internal details. No secret values were copied into this report. .env is ignored; rotate any credential ever committed outside the reviewed history.

Authentication, Payment and File Security

Shared password policy/session invalidation and provider verification/idempotency remain covered by prior tests. Stripe/PayHere cryptographic and refund behavior is IMPLEMENTED_UNVERIFIED without sandbox credentials. Uploads enforce size, allowed type, content sniffing/checksum, ownership, private storage and signed expiry; antivirus is not implemented and is a recommended defense-in-depth control.

Dependency Audit

Current-major upgrades were applied for AWS SDK, Bull Board, Axios, BullMQ, dotenv, ioredis, Jest, Morgan, Multer, MySQL2, node-cron, Nodemailer 8, pdfmake, Sequelize and Zod. The audit fell from 30 to 19 advisories. Remaining findings are primarily transitive and include Puppeteer/extract-zip plus packages requiring major/breaking remediation; they must be triaged or accepted before production.

E2E and Concurrency Testing

Mocked/unit regression verifies domain state, authorization/validation policies and deterministic calculations. Real retail, failed-payment, cancellation, delivery, return/refund, loyalty/referral, business, support, authorization, InnoDB contention and duplicate webhook/claim flows remain UNVERIFIED. Use isolated staging identities and provider sandboxes; never run destructive commerce smoke against production.

Migration and Infrastructure Validation

Phase 0–10 migrations were left unchanged. No migration was executed. Fresh and restored-upgrade MySQL procedures, FK/index/query-plan validation, Redis, BullMQ, single-scheduler cron, S3, SMTP, Stripe and PayHere are IMPLEMENTED_UNVERIFIED pending credentials/services. Forward correction or verified restore is the rollback model after live writes.

Queue/Cron Operations and Observability

Operational inventories are in QUEUE_OPERATIONS.md and CRON_OPERATIONS.md. /health/live tests process life; /health/ready tests required MySQL/Redis. Protected /api/v1/admin/metrics exports process memory, uptime, HTTP counts and duration sums using only method/status-class labels. Recommended alerts cover readiness, 5xx, DB/Redis, queues, webhooks, cron, latency and resource pressure.

OpenAPI, Docker, Nginx and CI/CD

openapi.json provides a valid OpenAPI 3.1 security/error and critical-route baseline, not a claim of complete route coverage. Docker uses Node 22, Chromium, production installs, non-root execution and liveness healthcheck. Compose separates API/worker and health-gates MySQL/Redis; production secrets must not use .env files. Nginx forwards standard proxy headers and bounds upload/timeouts; production TLS/trusted-proxy validation is required. Existing Gitea CI plus syntax/tests/dependency/OpenAPI validation should gate releases.

Backup/Restore and Production Runbook

See BACKUP_RESTORE.md, PRODUCTION_RUNBOOK.md, and PRODUCTION_CHECKLIST.md. Database and object storage must be recoverable together; Redis loss semantics, RPO/RTO, restore drills and rollback authority require approval.

Remaining Unverified Items and Assessment

Code implementation is approximately 91%; security 82%; automated tests 76%; real integration validation 25%; observability 72%; deployment 78%; documentation 88%; backup/recovery 68%. Overall code completion is 90%; production readiness is 64%. Decision: STAGING-READY, not production-candidate, because migrations, real dependencies, provider sandboxes, concurrency/E2E, notification fanout, remaining dependency advisories, and restore drills lack evidence.

Module 16 AI Customer Support Chatbot is excluded and was not implemented. No LLM, prompt, RAG, embedding, vector database, generated reply, or AI agent code was added.