| Week | Milestone | Deliverable | |---|---|---| | | Project kickoff, requirements freeze | Confluence spec, JIRA epics | | 2 | Back‑end scaffolding | API endpoints ( add , remove , list , recommendations ), DB schema migrations | | 3 | Event pipeline & feature store | Kafka topic, Redis cache, ClickHouse ingestion scripts | | 4 | Front‑end components | React Watchlist page, card components, optimistic UI | | 5 | Baseline recommendation engine (CF only) | Training notebook, model artifact, inference API | | 6 | Hybrid model integration, cold‑start logic | Updated scoring function, A/B test framework | | 7 | Personalization UI (settings, discovery slider) | Settings page, preference persistence | | 8 | QA, performance testing, launch checklist | Load‑test (k6), monitoring dashboards, rollout to 10 % of traffic |
