v1.6.0

✨ New Features

• 7z extraction: .7z archives now supported (LZMA2, pure Rust)
  • Single-volume .7z — instant extraction with progress
  • Multi-volume .7z.001/.002/... — right-click .001 or .7z to extract
  • Per-chunk cancel (stops mid-file, not just between files)
  • Overwrite confirmation (header-only read, no decompression needed)
  • Path-traversal guard (zip-slip protection)
  • Right-click .7z and .001 → LRGEX → Extract

🔧 Fixes

• Instant RAR cancel: Cancel now stops RAR extraction mid-file (within 100ms)
  via UCM_PROCESSDATA callback abort — no more waiting for the current file to finish
• Clean archive names: video.mp4 → video.zgx (extension stripped)
  • Folders unchanged (myfolder → myfolder.zgx)
  • Dotfiles preserved (.git → .git.zgx)

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