chore(repo): normalize LF endings

[stacknil]

Summary:

• Normalize files that were dirty immediately after a clean clone because tracked blobs had CRLF while .gitattributes requires LF.
• No semantic content changes; git diff --ignore-space-at-eol --exit-code passes.
• This followed local MSI conflict-copy cleanup so future checkouts stay clean.

Validation:

• python scripts\validate-reviewer-routes.py
• python -m pytest
• git diff --ignore-space-at-eol --exit-code