Upgrade to Next.js 16 + React Compiler#2
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- Next.js 15.5 -> 16.2 (Turbopack default), React 19.1 -> 19.2, @types/react 19.2 - Enable React Compiler (babel-plugin-react-compiler); reactCompiler: true - Migrate ESLint to eslint-config-next flat config (drop FlatCompat/@eslint/eslintrc) - Rename middleware.ts -> proxy.ts (Next 16 proxy); update CODEOWNERS - Node 22 floor: CI node-version 22, package.json engines, README/AGENTS - e2e (Playwright) runs against the production build; analyze uses next build --webpack - Defer Cache Components/PPR (client-driven Supabase; negligible benefit) - Includes prior tooling: pino logging, /health, runbooks, issue/PR templates, knip/jscpd/tech-debt/validate-docs, Vitest coverage, CODEOWNERS Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
CI validate-docs failed because AGENTS.md linked to ./.factory/skills/supabase-migration/SKILL.md, which is intentionally not committed. Convert the markdown link to inline code. Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
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Summary
Upgrades the app to Next.js 16.2.9 with React 19.2 and enables the now-stable React Compiler. Turbopack is the default for both dev and production builds. Also folds in the accumulated agent-readiness tooling from prior work.
Core upgrade
reactCompiler: true,babel-plugin-react-compiler) for auto-memoization in the chat UIeslint-config-nextnative flat config (droppedFlatCompat/@eslint/eslintrc)middleware.ts->proxy.ts(Next 16 proxy rename); CODEOWNERS updatednode-version: 22,engines.node >=22, README/AGENTSreact-hooks/set-state-in-effectfinding inchat-workspace.tsx(search debounce)analyzenow runsnext build --webpack(bundle-analyzer hooks Webpack; Turbopack is the default build)pnpm build && pnpm start); dummy Supabase key read fromE2E_SUPABASE_PUBLISHABLE_KEYwith a non-literal fallbackDecisions
Verification (all green)
lint, typecheck, vitest (100% coverage), production build (Turbopack), Playwright e2e (7/7), knip, jscpd, tech-debt, validate-docs, analyze.
Notes
This branch also carries earlier agent-readiness work (pino logging,
/health, runbooks, issue/PR templates, knip/jscpd/tech-debt/validate-docs, CODEOWNERS, Vitest coverage)..factory/anddroid-wiki/are intentionally excluded.