fix: document Next.js automatic JSX requirements

[cursor]

Summary

• replace the stale SPA-only automatic JSX limitation with current React SPA and Next.js support
• document the required @generaltranslation/compiler installation and Next.js Babel compiler setup
• clarify that Next.js automatic JSX injection requires Webpack and is unavailable with Turbopack or SWC

Verification

• installed and exercised gt-next@11.0.10 and @generaltranslation/compiler@1.3.32
• built a Next.js 16.2.6 fixture successfully with next build --webpack
• confirmed Turbopack emits the published incompatibility warning
• pnpm build:content
• node --experimental-strip-types scripts/validate-links.ts

  

[claude]

The content from this PR was folded into #467 along with twelve other open documentation PRs. On the way in it was reconciled against the other PRs and re-verified against generaltranslation/gt and generaltranslation/gt-cloud source before merging.

A few corrections were applied here: the Google Drive section was reconciled with #383's into one, the copy-naming rule and source-locale defaults were corrected, and the per-file Source control is now documented.

#467 has now merged, so this PR is being closed as superseded rather than abandoned. The branch is left in place.

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Generated by Claude Code