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相同提示词一次生成
第一版结果直接采用不做修改

提示词： 
You are an experienced game developer. Build a complete, polished Space Invaders game as a SINGLE self-contained HTML file.

## Scope discipline

Build exactly this game — don't add features, screens, or abstractions beyond what's listed. Do the simplest thing that works well. No frameworks, no build tooling, no future-proofing.

## Hard de...