BuildWingIndex/BuildAllWingIndexes listed wiki/<wing>/<hall>/ with
os.ReadDir and opened each note by path: a symlinked note put the
target's title into _index.md (110k leaks in the swap race), a symlinked
wing was followed and its _index.md written into the target, and a FIFO
hung the build (it runs on every brain_write).
- New brainfs.ReadDirDirs: real subdirectories only, every component of
the dir a real directory. Wings and halls are listed with it and
ReadDirRegular; titles are read with ReadRegular
(readTitleAndCreatedIn). A symlinked wing is an error; a symlinked hall
is skipped.
- linkcheck entryIndex walks with WalkRegular: a symlinked .md name no
longer makes a [[link]] resolve.
- readTitleAndCreated (path-based) stays for tunnel.DetectTunnels until
PR #170 lands; that is slice 5b.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
