skip invalid file types for gdrive

[jordan-homan]

Skips invalid shortcut files in google drive downloader. Example:

Unexpected job failure after 3 retries : most recent error 400: Error in downloader - Unsupported Google Drive native MIME type for file 1Tk0By3CY-NXRlkbcWhgyVtJcnFRLItTX: application/vnd.google-apps.shortcut. Docs Editors files must be exported before download.

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Summary by cubic

Skip non-downloadable Google Drive files and empty files during indexing and downloading to prevent errors and reduce noise. Exportable Docs/Sheets/Slides still export; unknown native types still error.

• Bug Fixes
  • Added GOOGLE_DRIVE_SKIP_MIME_TYPES and _should_skip_file to drop shortcuts/forms/maps/sites/jam/fusiontable, plus inode/x-empty and zero-byte files with no MIME.
  • Indexer filters these in get_paginated_results and count_files_recursively.
  • Downloader logs and skips; _download_file returns None and run returns [] for skipped files.
  • Tests updated to cover skip behavior.

^{Written for commit 4e8cef5. Summary will update on new commits. Review in cubic}

[cubic-dev-ai]

1 issue found across 2 files

<sub>Shadow auto-approve: would not auto-approve because issues were found.

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[cubic-dev-ai]

0 issues found across 3 files (changes from recent commits).

<sub>Shadow auto-approve: would not auto-approve. Auto-approval blocked by 1 unresolved issue from previous reviews.

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[cubic-dev-ai]

0 issues found across 4 files (changes from recent commits).

<sub>Shadow auto-approve: would auto-approve. This PR adds a targeted skip for non-downloadable Google Drive native files and empty files, preventing recurring download errors; the changes are isolated to the Google Drive connector, well-tested, and do not impact core business logic or other connectors.

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