TASK22211: version memory-bank and backfill change-log stream

memory-bank/techContext.md

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+# Tech Context — PEDW FrontEnd
+
+## Languages and framework
+
+- JavaScript-first codebase (TypeScript tooling present).
+- Next.js `^14.2.28` with Pages Router.
+- React `^18.2.0`.
+
+## Core libraries in active use
+
+- Auth: `next-auth` + Prisma adapters.
+- Data/state: `redux`, `react-redux`, `next-redux-wrapper`, `redux-persist`, `redux-thunk`, `redux-form`.
+- Data access/integration: `axios`, `crypto-js`, `jsonpath-plus`.
+- i18n: `next-translate`, locale config in `i18n.js`.
+- Storage/infrastructure integrations: `@azure/storage-blob`, `@azure/storage-queue`, `@azure/identity`.
+- Notifications/telemetry: `notifications-node-client` (GOV.UK Notify), `applicationinsights`.
+- PDF/maps: `@react-pdf/renderer`, `react-pdf`, `leaflet`, `react-leaflet`, `google-map-react`.
+
+## Runtime and configuration
+
+- Standard app start script uses Next runtime (`npm start`).
+- Additional custom server entries exist (`server.js`, `server/server.js`) but are currently treated as non-active for the refactor baseline unless deployment evidence indicates otherwise.
+- Environment-driven config for auth, relay/API roots, hash key, notify key, and database URL.
+
+## Tooling and quality gates
+
+- Linting: `npm run lint` (`next lint`).
+- Formatting conventions from `.prettierrc`: 4 spaces, no trailing commas.
+- Prisma client generation script available: `npm run prisma:generate`.
+
+## CI/CD and deployment artifacts
+
+- `azure-pipelines.yml` exists (legacy-looking Node 10 build pipeline).
+- `Jenkinsfile` exists (Node 20 + Docker build/push/deploy flow).
+- `Dockerfile` exists (Node 20 Alpine runtime).
+- Repository contains mixed deployment artifacts; active production path should be treated as environment-dependent unless confirmed.
+
+## Local development workflow
+
+- `npm install`
+- `npm run dev`
+- `npm run lint`
+- `npm run build && npm start` for production-like verification