CodeRabbit Generated Unit Tests: Add unit tests for PR changes

[coderabbitai]

Unit test generation was requested by @sahiixx.

• Fix ESM conflicts and skill script bugs #11 (comment)

The following files were modified:

• skills/ai-tools/scripts/embeddings.test.js
• skills/ai-tools/scripts/extract.test.js
• skills/ai-tools/scripts/sentiment.test.js
• skills/ai-tools/scripts/summarize.test.js
• skills/ai-tools/scripts/vision.test.js
• skills/cloudflare-browser/scripts/cdp-client.test.js
• skills/cloudflare-browser/scripts/screenshot.test.js
• skills/cloudflare-browser/scripts/video.test.js

[coderabbitai]

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