chore: migrate from biome to prettier and rslint

[chenjiahan]

Summary

This PR migrates the repository from Biome to Prettier and Rslint, updates the editor and pre-commit workflow to use the new tools, and upgrades @rslint/core to 0.4.1.

Testing

• pnpm lint
• pnpm test

Related Links

• None

[Copilot]

Pull request overview

This PR migrates the repo’s formatting/linting toolchain from Biome to Prettier + Rslint, updating editor recommendations and repository tooling accordingly.

Changes:

• Replace Biome with prettier and @rslint/core, including a new rslint.config.ts and Prettier config/ignore files.
• Update package.json scripts and pre-commit hook to use the new lint/format commands.
• Apply quote/formatting updates across documentation and GitHub workflow YAML.

Reviewed changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
rslint.config.ts	Adds Rslint configuration (TS recommended preset).
package.json	Switches scripts from Biome to rslint + prettier; changes pre-commit behavior.
pnpm-lock.yaml	Removes Biome/nano-staged; adds @rslint/core and Prettier (and transitive deps).
biome.json	Removes Biome configuration.
.prettierrc	Adds Prettier config (single quotes).
.prettierignore	Ignores build artifacts and lockfile from Prettier runs.
.vscode/settings.json	Sets Prettier as the default formatter.
.vscode/extensions.json	Recommends Rslint + Prettier VS Code extensions.
README.md	Updates code snippets to single quotes.
.github/workflows/test.yml	Formatting-only YAML quote update.
.github/workflows/release.yml	Formatting-only YAML quote update.
.github/renovate.json	Adds Renovate configuration.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

Comments suppressed due to low confidence (1)

.github/workflows/test.yml:39

• The migration updates pnpm lint, but CI currently only runs tests. To prevent formatting/lint regressions and to validate the new toolchain on PRs, consider adding a pnpm run lint step in this workflow (or a dedicated lint job).

          cache: 'pnpm'

      - name: Install Dependencies
        run: pnpm install && npx playwright install

      - name: Run Test
        run: pnpm run test

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[Copilot]

pre-commit now runs pnpm run lint:write, which formats/lints the entire repo (not just staged files). This can be slow and can modify unstaged working-tree changes without re-staging them, leading to confusing commits. Consider switching back to a staged-files workflow (e.g., lint-staged/nano-staged equivalent) or compute the staged file list and pass it to rslint/prettier, then re-stage modified files.

[Copilot]

rslint.config.ts is TypeScript, but @rslint/core declares jiti as a (optional) peer dependency for config loading. Since jiti is not declared in devDependencies, this setup can break if jiti stops being present transitively. Either add jiti explicitly or switch the config to a JS file to avoid the TS runtime requirement.

Suggested change

	"@types/node": "^24.12.2",
	"@types/node": "^24.12.2",
	"jiti": "^2.4.2",