feat(CLI): support logLevel

[Timeless0911]

Summary

Support loglevel cli options for Rslib.

Related Links

https://rsbuild.rs/config/log-level

Checklist

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

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[Copilot]

Pull Request Overview

This PR adds support for the logLevel CLI option to Rslib, allowing users to control log verbosity during build operations. The implementation follows Rsbuild's log level configuration pattern.

• Adds --log-level CLI flag with support for info, warn, error, and silent levels
• Integrates log level configuration throughout the CLI commands and plugin system
• Includes comprehensive documentation in both English and Chinese

Reviewed Changes

Copilot reviewed 24 out of 25 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
website/docs/*/guide/basic/cli.mdx	Documents the new --log-level CLI option
website/docs/*/config/rsbuild/log-level.mdx	Adds dedicated documentation page for logLevel configuration
website/docs/*/config/rsbuild/index.mdx	Updates configuration overview to include logLevel
website/docs/*/config/rsbuild/_meta.json	Adds logLevel to navigation metadata
tests/integration/cli/log-level/*	Adds integration tests for log level functionality
packages/plugin-dts/src/*	Updates DTS plugin to respect log level settings
packages/core/src/utils/logger.ts	Adds 'rsbuild' to debug environment detection
packages/core/src/config.ts	Integrates logLevel into Rsbuild configuration
packages/core/src/cli/*	Implements CLI option parsing and log level setup
.vscode/settings.json	Updates schema paths for VSCode integration

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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