chore(types): re-export SearchMiddleware type from react-router

[jameshoward]

Re-export SearchMiddleware from @tanstack/router-core in @tanstack/react-router to avoid needing to add a direct dependency on @tanstack/router-core when typing search middleware.

Summary by CodeRabbit

• New Features
  • Added SearchMiddleware type to public exports, allowing developers to import and use this type directly from the package.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 4623ad2e-60a0-4339-92fe-b04db2f9c974

📥 Commits

Reviewing files that changed from the base of the PR and between 5a81726 and d31d214.

📒 Files selected for processing (1)

• packages/react-router/src/index.tsx

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📝 Walkthrough

Walkthrough

The pull request adds SearchMiddleware to the public type exports in the react-router package's main entry point, re-exporting it from @tanstack/router-core. This makes the type available directly to consumers of the package.

Changes

Cohort / File(s)	Summary
Type Export packages/react-router/src/index.tsx	Added SearchMiddleware to the public re-exports from @tanstack/router-core.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A type hops into view,
Through exports, fresh and new,
SearchMiddleware takes its place,
In the public space,
One small line, but it's true! ✨

🚥 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 describes the main change: re-exporting the SearchMiddleware type from react-router package to simplify consumer dependencies.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

Bundle Size Benchmarks

• Commit: 5a81726f0a2f
• Measured at: 2026-04-01T08:19:08.104Z
• Baseline source: history:796406da66cf
• Dashboard: bundle-size history

Scenario	Current (gzip)	Delta vs baseline	Raw	Brotli	Trend
react-router.minimal	87.48 KiB	0 B (0.00%)	275.76 KiB	75.97 KiB	████▁▁▁▁▁▂▃
react-router.full	90.78 KiB	0 B (0.00%)	286.95 KiB	78.95 KiB	▆▆▆█▁▁▁▁▁▂▂
solid-router.minimal	35.56 KiB	0 B (0.00%)	107.26 KiB	31.94 KiB	████▁▁▁▁▁▂█
solid-router.full	40.03 KiB	0 B (0.00%)	120.79 KiB	35.94 KiB	████▁▁▁▁▁▂▆
vue-router.minimal	53.38 KiB	0 B (0.00%)	153.07 KiB	47.94 KiB	████▁▁▁▁▁▂▄
vue-router.full	58.25 KiB	0 B (0.00%)	168.53 KiB	52.18 KiB	████▁▁▁▁▁▂▄
react-start.minimal	102.01 KiB	0 B (0.00%)	324.00 KiB	88.21 KiB	▅▅▅█▁▂▂▂▂▃▃
react-start.full	105.38 KiB	0 B (0.00%)	334.35 KiB	91.14 KiB	▆▆▆█▁▁▁▂▂▃▃
solid-start.minimal	49.66 KiB	0 B (0.00%)	153.51 KiB	43.84 KiB	▇▇▇▇▁▁▁▂▂▂█
solid-start.full	55.17 KiB	0 B (0.00%)	169.74 KiB	48.46 KiB	▇▇▇▇▁▂▂▂▂▃█

Trend sparkline is historical gzip bytes ending with this PR measurement; lower is better.