fix: add Windows binary version info

[he-yufeng]

Summary

• generate a PyInstaller Windows version-info file from pyproject.toml
• pass that version resource into both one-file and one-dir kimi.spec builds on Windows
• add a Windows CI assertion so release artifacts keep non-empty FileVersionInfo

Fixes #2178.

To verify

• uv run ruff check scripts/pyinstaller_version_info.py tests/test_pyinstaller_version_info.py
• uv run pytest tests/test_pyinstaller_version_info.py -q
• uv run pyright scripts/pyinstaller_version_info.py tests/test_pyinstaller_version_info.py
• uv run python scripts/pyinstaller_version_info.py --output dist/kimi_version_info.test.txt
• uv run pyinstaller --noconfirm kimi.spec
• (Get-Item dist\\kimi.exe).VersionInfo | Format-List FileVersion,ProductVersion,FileDescription,ProductName,CompanyName,OriginalFilename
• dist\\kimi.exe --help

---

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 2 additional findings.

[he-yufeng]

Rebased this onto the latest main; the only conflict was in kimi.spec, and the resolved spec keeps the Windows version-info generation while preserving the current upstream packaging layout.

Validation on head d44bca92:

• python -m uv run pytest -p no:cacheprovider tests\test_pyinstaller_version_info.py -q (3 passed)
• python -m uv run ruff check scripts\pyinstaller_version_info.py tests\test_pyinstaller_version_info.py
• python -m py_compile scripts\pyinstaller_version_info.py tests\test_pyinstaller_version_info.py
• git diff --check upstream/main..HEAD

The first pytest attempt hit a local Windows temp-directory permission error at C:\Users\He\AppData\Local\Temp\pytest-of-He, so I reran with TEMP/TMP pointed at a writable local temp directory and disabled pytest cache writes.