PR #156 round 3: a readRawNote rewrite to os.ReadFile or Root.ReadFile passed the lint and brought back the escape (19k leaks in 4s) and the FIFO hang. Listing forbidden APIs is whack-a-mole, so the control now rests on behaviour: - TestRawReadersLeakNothingUnderASymlinkSwapRace and TestRawReadersDoNotHangUnderAFIFOSwapRace swap a regular note, a symlink to an outside file, or a FIFO into raw/r.md while ListPending and ReadIngestFile loop for 1.5s; any leaked byte or a hang fails. - TestProcessDir_DoesNotHangUnderAFIFOSwapRace does the same for the unattended watcher (read and archive copy). Flipped: os.ReadFile -> leak + hang tests red; Root.ReadFile -> hang test red; copyFromRoot back to Root.Open -> watcher test red. The lint stays as a second layer: it also forbids ReadFile, matches the selector (so a stored method value is caught), refuses a dot-import of extract, and says it only covers the three files it parses. Refs #153 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>