feat: add snapshots and agent worktrees #50

Job	Run time
macOS Apple Silicon	6m 51s
macOS Intel	17m 10s
Windows	8m 48s
Linux	14m 6s
Publish updater metadata	21s
Canary release assets	13s
Canary installer downloads (windows)	59s
Canary installer downloads (mac-intel)	55s
Canary installer downloads (mac-apple-silicon)	23s
Canary installer downloads (linux)	3m 20s
Publish release	4s
Verify live GitHub downloads (mac-intel)	54s
Verify live GitHub downloads (windows)	49s
Verify live GitHub downloads (mac-apple-silicon)	28s
Verify live GitHub downloads (linux)	3m 57s
Roll back failed live release	0s
	59m 18s

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