Filename parsing now recognizes custom GoPro Labs prefixes

[hisnameisjoel]

Implemented support for custom prefixes before “GX” in filenames

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What Changed

• Filename parsing now recognizes optional prefixes before core GoPro codes (GX/GH/GP/GOPR/GS), so files like CAM2GX010117.MP4 are accepted and grouped correctly.
• Grouping uses the two-letter code plus the last 4 digits (same as before), independent of any prefix.
• Chapter detection and sorting are based on the first two digits after the GoPro code, not fixed string positions.

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Key Updates

src/main/fileSystem.ts

• Added flexible regex patterns that allow prefixes before the core GoPro code and handle extensions correctly.
• Added extractGoProCore() helper to parse model, code, and digits.
• Updated identifyGoProModel() and isGoProFile() to use extractGoProCore().
• Updated grouping key: uses code2 + last4Digits computed from the parsed core (maintains old behavior for standard names).
• Fixed sorting and chapter extraction to use parsed digits (robust to prefixes).

src/main/project.ts

• Made uniqueFileId robust by extracting the core code from the name (supports prefixes).
• Falls back to old behavior if parsing fails.

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Examples Supported

• CAM2GX010117.MP4
• CAM2GX020117.MP4
• CAM2GX030117.MP4

These will be detected as GoPro HERO5 high files, grouped as GX0117, and sorted by chapter 01, 02, 03 respectively.

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Notes

• Type checks pass for both Node and Web builds.
• No change to existing behavior for standard filenames like GX010009.MP4.