fix(runtime): preserve collision-free createRequire imports

[LingyuCoder]

Summary

• rename the HMR-local createRequire helper to a runtime-specific identifier
• keep collision-free createRequire imports from node:module unaliased in modern-module output
• add executable coverage for both webpack and rspack runtime modes

Why

RspackExport reserves variables declared by runtime modules before linking top-level bindings. The generic HMR helper name reserved createRequire for every chunk, even when HMR was not emitted, causing external imports to use a longer generated alias. Giving the HMR helper a runtime-specific name removes that false collision without adding scans or allocations to the chunk/module linking hot path.

This avoids approximately 59 raw bytes / 15 gzip bytes per affected output reported in the Rslib integration corpus.

Related links

• feat(core): enable Rspack runtime mode by default rslib#1806 (comment)

Checklist

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

[github-actions]

📦 Binary Size-limit

Comparing e0bb127 to chore: migrate Rstest and Rspress to Rstack CLI (#14998) by Jiahan Chen

🙈 Size remains the same at 66.74MB

[github-actions]

Rsdoctor Bundle Diff Analysis

Found 5 projects in monorepo, 1 project with changes.

📊 Quick Summary

Project	Total Size	Gzip Size	Change	Gzip Change
popular-libs	1.7 MB	552.1 KB	0	0
react-10k	5.6 MB	1.3 MB	0	0
react-1k	823.1 KB	217.0 KB	-	-
react-5k	2.7 MB	663.8 KB	0	0
ui-components	4.9 MB	1.4 MB	0	0

📋 Detailed Reports (Click to expand)

📁 react-1k

Path: ../build-tools-performance/cases/react-1k/dist/rsdoctor-data.json

⚠️ No baseline data found - Unable to perform comparison analysis

Metric	Current	Baseline	Change
📊 Total Size	823.1 KB	-	-
🗜️ Gzip Size	217.0 KB	-	-
📄 JavaScript	822.7 KB	-	-
🎨 CSS	0 B	-	-
🌐 HTML	328.0 B	-	-
📁 Other Assets	0 B	-	-

Generated by Rsdoctor GitHub Action

[codspeed]

Merging this PR will not alter performance

✅ 46 untouched benchmarks
⏩ 47 skipped benchmarks¹

---

_{Comparing seal/remove-redundant-create-require-alias (e0bb127) with main (a187415)}

Footnotes

1. 47 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

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