The remaining writers created or rewrote brain files by path:
- pipeline buildAndWrite: os.MkdirAll + os.WriteFile of every page.
- BackfillRefs: os.WriteFile of each concept page; a page swapped for a
symlink after the read was written through (the race test overwrote an
in-brain target before this change).
- watcher: the raw/processed and raw/failed archive copies (os.Create),
the .processed/.failed markers and the log.md entry (os.OpenFile).
- cmd/server: the claude-session archive.
All now go through brainfs PutRegular/AppendRegular (new package-level
PutFile/AppendFile for one-off writers: the watcher's call-site lint bans
.Open calls in that file so raw/ reads stay on OpenRegular).
Stacked on #189 (needs PutRegular/AppendRegular).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mathiasandClaude Opus 5.5
2f3422adf2