Normalize WSL and Git Bash media paths on Windows

[IvanSolis1989]

Summary

• normalize WSL-style /mnt/<drive>/... and Git Bash-style /<drive>/... media paths to native Windows drive paths before gateway attachment delivery
• apply the normalization to explicit MEDIA: tags, bare local-file extraction, and validation
• keep Unix-style paths unchanged unless running on Windows and the target drive root exists

Tests

• python -m py_compile gateway/platforms/base.py tests/gateway/test_platform_base.py tests/gateway/test_extract_local_files.py
• python -m pytest -o addopts='' -p no:timeout tests/gateway/test_platform_base.py::TestExtractMedia tests/gateway/test_extract_local_files.py::TestBasicDetection -q
• python -m ruff check gateway/platforms/base.py tests/gateway/test_platform_base.py tests/gateway/test_extract_local_files.py

Note: on this Windows runner I disabled the pytest-timeout plugin / project signal timeout addopts for the focused test command because signal.SIGALRM is not available on Windows.

[liuhao1024]

Code Review — Positive Verification

Reviewed the full diff. The WSL/Git Bash path normalization is well-implemented:

1. _normalize_local_media_path() cleanly extracts the quote-stripping and expanduser logic into a reusable function, adding Windows drive-letter normalization for /mnt/x/ and /x/ paths
2. Regex changes in MEDIA_TAG_CLEANUP_RE and extract_local_files correctly add the new path anchors without breaking existing Unix/Windows paths — the alternation order ensures /mnt/[A-Za-z]/ and /[A-Za-z]/ are tried before bare /
3. _windows_drive_root_exists() validates the drive letter before path construction, preventing fabricated paths for non-existent drives
4. Tests cover WSL (/mnt/c/), Git Bash (/c/), and existing Unix/Windows paths with proper monkeypatching of os.name and drive existence

The deduplication of path normalization logic across validate_media_delivery_path, extract_media, and extract_local_files is a clean improvement. No issues found.

[teknium1]

Thanks for addressing the WSL/Git Bash media-path gap. The premise still holds on current main: explicit MEDIA extraction only expands the POSIX string at gateway/platforms/base.py:3655, bare-path extraction does likewise at gateway/platforms/base.py:3772, and validation has no native-drive normalization at gateway/platforms/base.py:1287.

Problems

• The added tests verify extraction, but not the validation/filtering behavior the new helper also changes. The production delivery paths call filter_media_delivery_paths() after extraction (gateway/run.py:13241-13252), so a regression test should establish that /mnt/c/... and /c/... resolve through that path while an unavailable drive is rejected.

Suggested changes

• Rebase the implementation concept onto the current shared media parser, preserving MEDIA_EXTENSIONLESS_TAG_RE / _strip_media_tag_directives at gateway/platforms/base.py:1499-1543, then add direct validation or filter-level Windows-mocked tests.

Automated hermes-sweeper review.