Upgrade to Next 16 / React 19#207
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Next 16 removes the next lint command. Point CI and the .lint script at eslint directly and ignore the generated .next/ and build/ dirs, which eslint . picks up but next lint did not.
- next 15.2 -> 16.2, react/react-dom 18 -> 19.2 (+ @types) - @nextui-org/react -> @heroui/react 2.8 (deprecated rename, same API) - @mui/x-date-pickers 7 -> 8: AdapterDateFnsV3 import renamed to AdapterDateFns; transpilePackages workaround in next.config.js because the v8 ESM build trips over MUI 6's missing exports map - MUI stays on latest 6.x: material-react-table v3 requires MUI 6 - apexcharts 4 -> 5 (+ react-apexcharts 2): ApexAxisChartSeries is no longer a global type, import it from the module - swiper 11 -> 14, typescript 5.9, @types/node 24, remaining deps bumped to latest - not-found: pass RedirectType.replace as value (React 19 types) - tsconfig: reformatted by next build (react-jsx, .next/dev types)
Kept the Next 16 / React 19 dependency set, adopted main's newer bumps (@emotion/styled, @widgetbot/react-embed, @types/aos, eslint-config-prettier, eslint-plugin-import) and regenerated the lockfile, which also re-pins tripsit_drug_db to the commit the new combo checker needs. Counter.tsx needed a ref cast: react-countup typings predate React 19's RefObject<T | null>.
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Bumps the whole stack:
Fallout from the upgrade:
next lintis removed in 16, CI and the .lint script now call eslint directly};in style.cssVerified locally: tsc, eslint, next build all green, clicked through /, /factsheets, /factsheets/[drug], /appeal and /webchat.
Known issue (pre-existing, not from this PR): the homepage counters never animate because Counter.tsx points useCountUp at a non-existent element id. Will fix separately.