docs(testing): correct the rc.3 row again - STT works, the message lies

The maintainer said STT is packaged and worked in rc.2. It works in rc.3 too.
Relaunching with stdout/stderr captured and importing an asset that actually has
an audio track produced:

  [whisper-stt] boot: model=...\whisper-ggml\ggml-small-q8_0.bin port=64720
  ggml_vulkan: 0 = NVIDIA GeForce RTX 4070 Ti
  [stt] done on whispercpp-vulkan: 15.0s audio in 0.1s (106.8x real-time)

So the local server spawns, binds the GPU and transcribes. What actually
happened in the first attempt is that the asset had no audio track at all -
system audio and mic were off for that take - and the captions pane reports that
case as "Failed to fetch". That message is the defect: it reads as a network
failure and cost this run an hour hunting a broken STT server that was never
involved.

Two more finds from the same stderr. listProjects cannot read three saved
projects: one ZodError where transcript endSec < startSec across segments, words
and transcripts[0], and two SyntaxError on truncated or double-written JSON.
They are skipped silently. And the content-protection flag does log its effect,
which the row now records.

Caption anchoring is present with exactly the model the cherry-picks describe -
Bottom/Top, "long captions grow upward, the bottom edge stays put", 1.5% default
inset. Where a caption actually lands is still unmeasured: the only transcript
obtainable here came from a sine tone. That section still needs someone with a
real spoken recording before promote, and the row says so.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: EtienneLescot