chore(build): simplify Rslib configs

[chenjiahan]

Summary

The shared Rslib configuration currently carries options used by only a subset of packages. This PR moves the Solid dual-package setup and compiled externals into package-local configs, removes the unused rsbuild-plugin-arethetypeswrong integration, and relies on existing minification defaults. Generated package artifacts remain unchanged.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 31bb79b1-0b23-4df9-b780-abefb0b0dd1e

📥 Commits

Reviewing files that changed from the base of the PR and between bb8ecd1 and 77e422b.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (6)

• packages/plugin-less/rslib.config.ts
• packages/plugin-sass/rslib.config.ts
• packages/plugin-solid/rslib.config.ts
• pnpm-workspace.yaml
• scripts/config/package.json
• scripts/config/rslib.config.ts

💤 Files with no reviewable changes (3)

• scripts/config/package.json
• pnpm-workspace.yaml
• scripts/config/rslib.config.ts

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📝 Walkthrough

Walkthrough

Updated shared Rslib configuration by removing type-checking plugin integration, rspack settings, and unused package variants. Removed the associated dependency from the workspace catalog and configuration package. Less and Sass now exclude compiled paths from bundling. Solid now explicitly defines ESM and CommonJS builds, with ES2023 syntax and Node-based minification for the CommonJS output.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: simplifying Rslib configs.
Description check	✅ Passed	The description matches the changes by describing the shared config cleanup and package-local moves.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

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• Create stacked PR
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