v16.3.0-canary.83

Misc Changes

• Turbopack tests: remove assertions that duplicate webpack results: #95688
• Fix support for custom-media-queries in LightningCSS: #95689
• Clarify AI-assisted contribution policy in PR template and AGENTS.md: #95629
• docs: add Building guide: #94999
• docs: add incremental adoption path to Cache Components migration guide: #95325
• [PPF] Sync IO is only allowed in the dynamic stage: #95384
• refactor: remove unnecessary switches from StagedRenderingController: #95383
• Keep the request body a plain Readable after middleware so Readable.toWeb() doesn't hang: #95607
• docs: note default error/not-found UI follows OS color scheme, not app theme: #95673
• test: skip redbox check in "static prefetch - missing suspense around search params": #95670
• test: allow-runtime breaks Link's Server component child detection: #95596
• docs: Immutable static assets: #95348
• [turbopack] Simplify service worker e2e tests: #95672
• [docs] Update "Handling a Custom Service Worker" in the CRA migration docs: #95434
• [docs] Update progressive web apps documentation for new service worker syntax: #95431
• (TypeScript 7 Support) Add experimental TypeScript CLI backend: #95639

Credits

Huge thanks to @wbinnssmith, @sampoder, @bgw, @aurorascharff, @lubieowoce, @timneutkens, @icyJoseph, and @mischnic for helping!