perf: revert to Response, and add docs regarding for FastResponse

[birkskyum]

Reverts:

• perf(start): use FastResponse from srvx #6616
• perf(solid-start): 51% improvement #6615

Adds docs about FastResponse instead

Summary by CodeRabbit

• Documentation

  • Added a "FastResponse" performance tip for Node.js + Nitro hosting in React and Solid guides, noting an expected ~5% throughput improvement and usage steps.

• Refactor

  • Router packages now emit standard Response objects for server-side rendering.
  • Removed transitive srvx dependency from React, Solid, and Vue router packages.

[nx-cloud]

View your CI Pipeline Execution ↗ for commit abc5ca6

Command	Status	Duration	Result
nx affected --targets=test:eslint,test:unit,tes...	✅ Succeeded	<1s	View ↗
nx run-many --target=build --exclude=examples/*...	✅ Succeeded	3s	View ↗

---

☁️ Nx Cloud last updated this comment at 2026-02-09 06:38:15 UTC

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR removes the srvx dependency and replaces FastResponse usage with native Response across React, Solid, and Vue router SSR implementations, and adds documentation tips about using FastResponse for Node.js/Nitro hosting scenarios.

Changes

Cohort / File(s)	Summary
Documentation docs/start/framework/react/guide/hosting.md, docs/start/framework/solid/guide/hosting.md	Added "Performance Tip: FastResponse" guidance and code snippets describing srvx's FastResponse usage for Node.js/Nitro hosting (notes applicability and ~5% throughput improvement).
Package Dependencies packages/react-router/package.json, packages/solid-router/package.json, packages/vue-router/package.json	Removed the srvx dependency from each router package's package.json.
SSR Response Construction packages/react-router/src/ssr/renderRouterToStream.tsx, packages/solid-router/src/ssr/renderRouterToStream.tsx, packages/vue-router/src/ssr/renderRouterToStream.tsx	Removed FastResponse imports and replaced constructions of new FastResponse(...) with new Response(...) in both bot and streaming code paths; status codes and headers preserved.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• perf(solid-start): 51% improvement #6615: Reintroduces srvx/FastResponse usage in the same renderRouterToStream files (direct code-level conflict).
• perf(start): use FastResponse from srvx #6616: Also modifies renderRouterToStream to use FastResponse/srvx, opposing this PR's removal.

Poem

🐇 I hopped through bytes and code so bright,
I nudged a FastResponse into the light,
Then watched dependencies slip away,
Native Response now leads the play,
A little hop for cleaner day.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main changes: reverting FastResponse usage back to standard Response and adding documentation about FastResponse as an optimization option.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch use-response

---

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commit: abc5ca6

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@docs/start/framework/react/guide/hosting.md`:
- Around line 239-248: Add an explicit install instruction for srvx before the
FastResponse snippet: note that srvx is no longer a transitive dependency and
show the user to install it (e.g., npm/yarn/pnpm install srvx) prior to
importing FastResponse, and ensure the docs mention FastResponse and
globalThis.Response so readers know to run the install step before adding the
import and assignment.