Bug-hunt round 47: missing CHANGELOG entry for round 46's installer fixes

.abcd/work/DECISIONS.md

@@ -1581,3 +1581,33 @@ Architecture-shaping decisions graduate to an ADR under
   name the qualifier that actually distinguishes them. Rescoped the
   CHANGELOG bullet's subject to `analyze`, true of it, without altering
   the historical record's substance.
+- 2026-08-16 — Bug-hunt round 47: one confirmed nitpick, four refuted, two
+  discarded on split verdicts. Round 46's `install.sh` ffprobe-install fix
+  and the `curl -fL` model-download recipe fix had no `CHANGELOG.md` entry
+  anywhere (the round's only edit to that file was an unrelated rescope of
+  an existing `[0.2.0]` bullet); matching this repo's established practice
+  of backfilling exactly this gap (round 27's own entry, and round 31's
+  PR #47 backfilling round 30's fix), a bullet was added to `[Unreleased]`'s
+  "Checks and installer:" group. Four candidates
+  were refuted: `record`'s Ctrl+C handling during macOS device probing (the
+  ordering is a documented, tested, deliberate fix for a worse defect, and
+  the claimed misdiagnosis is a pre-existing gap unrelated to the probe
+  window); `demo`'s case-sensitive `loopbackHost` "localhost" match (no real
+  caller — browser and Node URL parsers lowercase hosts before any header is
+  written); `WriteFileAtomicNoFollow` replacing a non-regular file its
+  sibling refuses (already adjudicated refuted in round 30 — `rename(2)`
+  never opens the target, so the hazard the sibling's stricter check guards
+  against is absent by construction; a planted FIFO/socket carries no real
+  threat and the sidecar's own repair path depends on the replace
+  succeeding); and the `[0.4.0]` CHANGELOG entry's `audio.wav` file-mode
+  claim being made stale by round 45's existing-file mode preservation (both
+  refuters held that a released section's entry is only corrected when it
+  was already wrong at release time — round 46's own precedent for editing a
+  released entry — and this one was true on the day it was written). Two
+  candidates were discarded on split verdicts (per the loop's tie-breaking
+  rule): `transcribe-a-recording.md` omitting `ffprobe` as a dependency
+  (Homebrew's `ffmpeg` formula bundles it, narrowing the exposed population
+  to the tutorial's no-Homebrew macOS path); and the same macOS `install.sh`
+  branch lacking a residual-gap warning message (round 46's own commit
+  called the branch "untouched" as a considered decision, but the
+  message-only fix was judged separately fixable by the other refuter).

CHANGELOG.md

@@ -284,6 +284,18 @@ Checks and installer:
   `--help` works through the documented pipe invocation; `--dir`/`--version`
   without a value are refused cleanly; the whisper.cpp model recipe
   downloads into a directory `-model NAME` actually searches.
+- `install.sh`'s Linux local-ffmpeg branch now installs `ffprobe` alongside
+  `ffmpeg` from the same tarball: `transcribe -audio`'s offset derivation
+  shells out to `ffprobe` to read a recording's `creation_time` tag, and
+  without it on PATH external-recording offset derivation fell back to 0,
+  reported with the same provenance as a genuinely missing or unreadable tag
+  (the macOS local-install branch still lacks `ffprobe`, a residual gap).
+  The whisper.cpp model-download recipe, printed by `resolveModel` and
+  mirrored in the how-to guide, now uses `curl -fL` instead of `curl -L`:
+  without `-f`, an HTTP error response for a moved or withdrawn model asset
+  used to be written into the destination `.bin` file at exit 0, a
+  "successful" download whisper-cli only rejects later, confusingly, at
+  load time.
 
 Documentation: