feat: re-run on demand in watch mode.

[fi3ework]

Summary

Rerun test files on demand, with following major modification:

1. using a new Rstest class to hold the persistent test results, which will be used to do the partial update with.
2. calculate the affected test entry files by the diff of the chunks, and rerun them as on-demand.

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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[Copilot]

Pull Request Overview

This PR implements on-demand test re-running in watch mode by tracking build chunk changes and only running affected test files. It introduces a new Rstest class to replace the previous context approach and maintains persistent test results for partial updates.

• Introduces a new Rstest class that maintains persistent test state and reporter results
• Implements chunk-based change detection to identify affected test files in watch mode
• Adds filtering capabilities to reporters to show results only for re-run tests

Reviewed Changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
packages/core/src/types/worker.ts	Adds chunks field to EntryInfo type for tracking build chunks
packages/core/src/types/reporter.ts	Adds optional filterRerunTestPaths parameter to reporter interface and updates import path
packages/core/src/runtime/api/poll.ts	Removes biome-ignore comment for lint rule
packages/core/src/reporter/summary.ts	Updates error log filtering to respect filterRerunTestPaths parameter
packages/core/src/reporter/index.ts	Passes through filterRerunTestPaths to summary error logging
packages/core/src/reporter/githubActions.ts	Adds filterRerunTestPaths parameter to interface (unused)
packages/core/src/core/runTests.ts	Updates to use new Rstest class and implements on-demand test running logic
packages/core/src/core/rstest.ts	New class replacing context pattern with persistent state management
packages/core/src/core/rsbuild.ts	Implements chunk change detection and affected entry calculation
packages/core/src/core/index.ts	Updates to instantiate Rstest class instead of using context function
packages/core/src/core/context.ts	Removes old context creation logic (replaced by Rstest class)
e2e/watch/shortcuts.test.ts	Updates tests to verify new debug logging behavior
e2e/watch/index.test.ts	Updates tests to verify re-run detection and logging

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[9aoy]

can we log removed files?

[fi3ework]

it only will log when DEBUG is enabled, i think it's okay to preserve for test and debug.