v0.6.3

Features

• Added live progress reporting for long push operations, including mirroring history, packing objects, and sending objects.

Improvements

• Optimized history export during pushes by caching already-exported blobs, avoiding re-reading and re-compressing unchanged files across saved states.
• Enabled automatic pack-builder parallelism in libgit2 pushes (pb_parallelism = 0) to avoid single-core delta compression.
• Added automatic fallback to the system git push when libgit2 push fails (notably for large first pushes where pack building can stall the remote connection).

Fixes

• Prevented large first pushes from appearing hung by ensuring progress is finished/cleared on error paths.
• Added a regression test to verify first-push exports compress each blob once per unique content rather than once per saved state.