On a clean install the WD tagger download failed instantly: only the
(UI-removed) caption model prep ever downloaded the shared ONNX Runtime
DLLs, while ensure_onnx_runtime — despite its comment — only initializes
and errors when the DLL is absent. Worse, the OnceLock cached that error
for the whole session, and the onboarding step swallowed the message.
- new captioner::provision_onnx_runtime downloads missing DLLs; tagger
prep calls it before init
- ensure_onnx_runtime no longer caches failure (Mutex<bool>, success-only
latch) so a later download can recover in-session
- onboarding AI step now displays taggerModelError
LyAhn
b72f140737