A subfolder whose bounded probe answered `unknown` came back as `children: []`
with no `incomplete` and `truncated` false, so a dead mount, or a healthy one
slower than the 1.5 s probe on first touch, read as an empty folder and a
search missed it in silence. `unknown` is never `absent` (#516).
Such a folder now goes on the walk's `unread` list, which flags the node and
sets `truncated` in both walks. A folder the filesystem says is gone drops out
quietly as before. The row said "file limit reached", which would be false
here, so it now reads "Not fully scanned" for either reason.
Reproduced on a real disk with a parent at mode 0444, where the child's stat
answers EACCES: the API, the search and the panel all report it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The fair rounds give a directory its node before reading it, so every folder
still queued when the 5,000-node budget ends sat in the tree with empty or
partial children and read as an empty folder. Keep the node on the tree cursor
and set an additive incomplete: true on every cursor left in the queue, then
draw one dim, inert row under such a folder while it is expanded. The envelope
check ignores keys it does not know, so old and new clients stay compatible.
Stop each round at the top once the budget is spent, before the shift: the
rest stay queued unread, and flagged, rather than read and sorted for nothing.
Say what the walk is: a per-directory round-robin (breadth-first), fair per
directory and not per subtree, with search results now shallow-first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Codeman maintainer