ActionCheese Sync 0.4.2

Free, open-source multicam sync for Premiere and DaVinci Resolve. Aligns
footage by its sound, so cameras whose clocks were never set still land
together.

Saving a comparison report did nothing

In 0.4.1, Help › Compare With a Correct Timeline measured the sync and
printed the result, then asked where to save the report — and wrote no file.
No error, no warning, nothing. You picked a filename and got silence.

Two faults, one on top of the other. The report is JSON, and one value in it
came out of the matcher as a numpy boolean, which the JSON writer refuses.
That raised before the file was created. And because it happened on the
window's own thread rather than the worker, the traceback went to a stderr a
bundled .app discards — so the operator saw a dialog close and nothing follow.

Both are fixed. Reports save. And an unexpected error anywhere in the window
now shows itself instead of disappearing, which is the reason the first fault
survived a release at all.

The what's-new window waits for a real release

It appeared after every update, including hotfixes like 0.4.1 — a window you
learn to dismiss unread. It now opens for a new major or minor version only.

Nothing is lost by waiting: the patches in between stay pending and are listed
together next time, so you see every fix since the last one you actually read,
not just the newest. Help › What's New has the full history whenever you
want it.

Requirements: Apple silicon Mac, macOS 11 or later. Intel Macs are not
supported. ffmpeg is bundled, so nothing else to install.

367 tests pass, including the save path end to end — it had none before.