Rsbuild Best Practices

This pulls together the configuration patterns, CLI commands, and optimization techniques you need when working with Rsbuild projects. It covers the practical stuff like when to use `tools.rspack` versus native config options, how to debug with `DEBUG=rsbuild`, and why you should import assets from source directories instead of public. The guidance on type checking with the plugin versus standalone tsc, plus the profiling tips using `RSPACK_PROFILE`, are exactly what you need when things go sideways. It's basically the collected wisdom on staying within Rsbuild's happy path rather than fighting the tool or cargo-culting Webpack patterns.