feat: improve deprecation warning messages

[chenjiahan]

Summary

This PR introduces a deprecate() helper to improve deprecation warning messages.

Before

After

Checklist

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

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[Copilot]

Pull request overview

This PR introduces a deprecate() helper function to standardize and improve deprecation warning messages across the Rspack codebase. The new helper ensures deprecation warnings are only shown once per message by tracking them in a Set, and provides consistent formatting with a [Rspack Deprecation] prefix.

Key changes:

• Added a new deprecate() helper function that deduplicates warnings and formats them consistently
• Replaced all util.deprecate() calls from Node.js with the new helper function
• Updated deprecation messages to be more concise and consistent in tone

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
packages/rspack/src/util/index.ts	Added new deprecate() helper function with message deduplication; updated error messages in unsupported() to use consistent branding
packages/rspack/src/rspack.ts	Replaced util.deprecate() with new deprecate() helper for watch option warning
packages/rspack/src/config/types.ts	Added JSDoc deprecation notice for topLevelAwait option
packages/rspack/src/config/normalization.ts	Replaced all util.deprecate() calls with new deprecate() helper; updated deprecation messages to be more concise and consistent
packages/rspack/src/builtin-plugin/lazy-compilation/middleware.ts	Replaced console.warn() calls with deprecate() helper for automatic deduplication; removed manual warning tracking logic

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[github-actions]

Rsdoctor Bundle Diff Analysis

⚠️ Note: The latest commit (da9254b193) does not have baseline artifacts. Using commit be5d0ef3f5 for baseline comparison instead. If this seems incorrect, please wait a few minutes and try rerunning the workflow.

Found 5 projects in monorepo, 0 projects with changes.

📊 Quick Summary

Project	Total Size	Change
react-10k	5.7 MB	0
react-1k	823.4 KB	0
react-5k	2.7 MB	0
rome	984.3 KB	0
ui-components	2.1 MB	0

Generated by Rsdoctor GitHub Action

[github-actions]

📦 Binary Size-limit

Comparing 294f648 to fix: SRI plugin runtime module check for Module Federation (#12519) by harpsealjs

🙈 Size remains the same at 47.87MB

[codspeed-hq]

CodSpeed Performance Report

Merging #12524 will not alter performance

_{Comparing deprecation_logs_1222 (294f648) with main (9c290ed)¹}

Summary

✅ 16 untouched
⏩ 1 skipped²

Footnotes

1. No successful run was found on main (da9254b) during the generation of this report, so 9c290ed was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

2. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩