Game Compressor 0.9.9

Game Compressor 0.9.9 focuses on mounted image recovery/extraction, safer
storage handling, and a few operator-facing quality-of-life fixes.

Compared against v0.9.7.

Highlights

Added Extract to Folder for mounted image entries. It copies the currently
mounted image contents into a normal title folder, verifies the result, and
switches ShadowMountPlus toward the extracted folder when possible.
Fixed the /api/gc/extract-image route so the UI extract action reaches the
backend.
Added a terminate button and a reminder to stop Game Compressor after jobs
finish before launching games.
Added a guarded Continue anyway retry for safe compression when the only
failure is inability to probe free space.
Improved free-space probing by falling back to mounted storage roots when an
output folder does not exist yet.
Improved move/copy destination selection so existing storage layouts such as
/homebrew and /etaHEN/games are preferred.
Hardened PFSC repair journal resume behavior by discarding journals with bad
or mismatched counters.
Improved game title detection for localized param.json metadata.
Skipped automatic background size rechecks for USB-hosted folders during
normal library refresh.

Runtime data remains under:
```
/data/GameCompressor
```
No rebuilt ShadowMountPlus binary is required. This release only uses the
supported ShadowMountPlus control/config flow.

See CHANGELOG.md for the full detailed change list.