Two modes per linked folder. 'mirror' keeps today's behaviour for a plain
folder that add turned into a repo. 'snapshot' is new and is for a folder
that already had a git history: nothing is ever committed on the user's
behalf, and instead each pass builds a commit object from the working tree
via a scratch index + commit-tree and pushes it to
refs/granthi-backup/<device>/<ts>. HEAD, the index and every file stay
exactly as the user left them, so uncommitted, unmerged, half-finished work
leaves the machine with a timestamp to restore from.
Verified on the beta forge (Gitea 1.27.2) that a custom ref namespace is
accepted, readable via ls-remote, and absent from the branch list.
Also: retention (all for 24h, hourly for 7d, daily beyond; unparseable
timestamps kept), snapshots/restore commands, restore never writing over the
working tree, get --all bounded by what the forge grants, list <pattern>,
.gitignore seeding, an add size guard, and a persisted device_id.
141 tests (was 108).
claude
9e3201a296