feat(core): Add dev.client.logLevel option

[zalishchuk]

Summary

Adds an option to control the verbosity of development server browser console logs, similar to the webpack-dev-server logging setting.

⚠️ Please include Chinese documentation for dev.client.logLevel. I believe that machine-translated documentation won't be as clear as that written by a native speaker. Thanks!

Related Links

https://webpack.js.org/configuration/dev-server/#logging

Checklist

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

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[Copilot]

Pull request overview

This PR adds a dev.client.logLevel configuration option to control the verbosity of Rsbuild's client-side browser console logs, similar to webpack-dev-server's logging setting. The feature allows developers to filter log messages from Rsbuild's development client at different levels: 'info', 'warn', 'error', or 'silent'.

Key Changes

• Added a new logLevel option to the dev.client configuration that inherits from the root logLevel when not explicitly set
• Implemented a configurable logger system for client-side code with proper log level filtering
• Updated all client-side console calls to use the new logger with the [rsbuild] prefix

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
website/docs/en/config/dev/client.mdx	Added documentation for the new dev.client.logLevel option with usage examples
packages/core/src/types/config.ts	Added logLevel property to ClientConfig type definition
packages/core/src/defaultConfig.ts	Added default value logic for dev.client.logLevel that inherits from root logLevel
packages/core/src/client/log.ts	New logger implementation with level-based filtering and message prefixing
packages/core/src/client/hmr.ts	Replaced direct console calls with the new logger instance
packages/core/src/client/overlay.ts	Replaced direct console calls with the new logger instance
packages/core/src/server/assets-middleware/index.ts	Updated client initialization to pass logLevel configuration
packages/core/tests/default.test.ts	Added comprehensive unit tests for logLevel inheritance and explicit configuration
packages/core/tests/__snapshots__/environments.test.ts.snap	Updated snapshots to include the new logLevel field
e2e/cases/hmr/log-level/	New E2E test suite validating log level behavior in the browser
e2e/cases/swc-plugin/index.test.ts	Updated to set logLevel to 'silent' to avoid SWC plugin console stripping issues

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[Copilot]

Pull request overview

Copilot reviewed 13 out of 13 changed files in this pull request and generated no new comments.

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[zalishchuk]

@chenjiahan I've simplified the logger implementation, but we still need to translate the documentation

[chenjiahan]

we still need to translate the documentation

Sure! I will add Chinese documentation after merging the PR

[chenjiahan]

LGTM, awesome!