chore(deps): update biome to v2

[chenjiahan]

Summary

• Update biome to v2
• Use npx @biomejs/biome migrate --write to migrate the config
• Fix all newly detected lint issues

Related Links

https://biomejs.dev/blog/biome-v2/

Checklist

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

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[Copilot]

Pull Request Overview

This PR upgrades Biome to v2, migrates the configuration, and resolves all new lint issues across e2e test cases and project configs.

• Updated biome.json schema and lint rule definitions
• Organized and reordered imports, removed unused React imports in legacy JSX cases
• Added/removed error-handling and blank lines to satisfy new lint rules

Reviewed Changes

Copilot reviewed 88 out of 88 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
e2e/cases/plugin-react/legacy-jsx/src/App.jsx	Added // biome-ignore for unused React import
e2e/cases/plugin-react/enable-profiler/src/App.jsx	Removed unused React import
e2e/cases/plugin-api/plugin-hooks/index.test.ts	Reordered createRsbuild and type RsbuildPlugin imports
e2e/cases/plugin-api/plugin-hooks-watch/index.test.ts	Reordered createRsbuild and type RsbuildPlugin imports
e2e/cases/plugin-api/plugin-hooks-environment/index.test.ts	Reordered createRsbuild and type RsbuildPlugin imports
e2e/cases/plugin-api/plugin-expose/index.test.ts	Reordered createRsbuild and type RsbuildPlugin imports
e2e/cases/plugin-api/plugin-after-build-hook/index.test.ts	Reordered createRsbuild and type RsbuildPlugin imports
e2e/cases/node-polyfill-tip/without-protocol/index.test.ts	Changed catch (err) {} to catch {}
e2e/cases/node-polyfill-tip/with-protocol/index.test.ts	Changed catch (err) {} to catch {}
e2e/cases/module/glob-import/src/App.jsx	Removed unused useState import and variable
e2e/cases/module-federation/remote/src/bootstrap.js	Removed unused React import
e2e/cases/module-federation/host/src/bootstrap.js	Removed unused React import
e2e/cases/module-federation-v2/remote/src/bootstrap.js	Removed unused React import
e2e/cases/module-federation-v2/host/src/bootstrap.js	Removed unused React import
e2e/cases/html/template-with-script/index.test.ts	Added // biome-ignore for template‐string lint
e2e/cases/css/css-assets/index.test.ts	Combined helper imports into a single statement
e2e/cases/cli/watch-files/rsbuild.config.ts	Reordered defineConfig and type RsbuildPlugin imports
e2e/cases/cli/watch-files-array/rsbuild.config.ts	Reordered defineConfig and type RsbuildPlugin imports
e2e/cases/assets/emit-assets/src/index.js	Inserted blank line for import separation
biome.json	Updated to v2 schema, reorganized assist.actions, added new lint rules

Comments suppressed due to low confidence (2)