fix(mf): avoid non-enhanced crash with single-item shareScope arrays

[cursor]

Fixes a critical panic in module federation container codegen when enhanced=false and shareScope is provided as a single-item array (e.g. ["default"]). Adds a regression config-case test to ensure this valid input compiles and works.

  

[github-actions]

Rsdoctor Bundle Diff Analysis

Found 5 projects in monorepo, 0 projects with changes.

📊 Quick Summary

Project	Total Size	Change
react-10k	5.7 MB	0
react-1k	826.2 KB	0
react-5k	2.7 MB	0
rome	984.2 KB	0
ui-components	2.3 MB	0

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[github-actions]

📦 Binary Size-limit

Comparing 80aea5c to fix: dup external module declarations (#13231) by Fy

❌ Size increased by 256bytes from 49.00MB to 49.00MB (⬆️0.00%)

[codspeed-hq]

Merging this PR will not alter performance

✅ 16 untouched benchmarks
⏩ 3 skipped benchmarks¹

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_{Comparing cursor/critical-bug-inspection-d613 (80aea5c) with main (7b3b33f)}

Footnotes

1. 3 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. ↩