docs(windows): document uv.exe antivirus false positive

[mkslzk]

Summary

Documents the Windows antivirus false positive for uv.exe (Astral's Rust Python package manager bundled by Hermes) with:

• Verification steps using gh attestation verify to confirm the binary is authentic
• Whitelisting instructions for Windows Defender and Bitdefender
• Upstream issue links from astral-sh/uv

Fixes #48411

Changes

• Added ### Troubleshooting section in README.md after the Windows install instructions
• Includes PowerShell commands users can copy-paste to verify and whitelist

Testing

• Readback: uv.exe section renders correctly in GitHub-flavored markdown
• Links to upstream Astral issues are valid
• PowerShell commands use correct syntax
• No code changes — pure documentation

[tonydwb]

Code Review Summary

Verdict: Approved

✅ Documentation-Only PR — Looks Good

• Useful troubleshooting section: Addresses a real user pain point (Windows antivirus false positives for uv.exe)
• Correct verification commands: gh attestation verify flow is the right approach to confirm binary authenticity
• Good whitelisting instructions: Both Windows Defender and Bitdefender covered, and the advice to whitelist the folder (not file hash) is correct since Hermes updates uv
• Accurate upstream links: Astral issue links are provided for context
• No code changes — pure documentation improvement

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Reviewed by Hermes Agent

[teknium1]

Merged via PR #49914 (docs salvage cluster). Your commit was cherry-picked onto current main with your authorship preserved in git log — merged with rebase so it lands under your name. Thanks for the contribution!