An interrupted fastembed model download leaves <cacheDir>/<model>/ with
sidecars and a truncated model.onnx_data but no model.onnx. Upstream
retrieveModel short-circuits on the existing dir (and reuses a leftover
partial <model>.tar.gz), so FlagEmbedding.init throws "Model file not
found at .../model.onnx" every session: semantic recall silently dies
machine-wide and reconcileEmbeddingModel re-enqueues the same
never-embeddable rows on every store open.
quarantineCorruptModelFile only matched "Protobuf parsing failed", never
this partial-extraction variant. Add clearIncompleteModelCache: a
"Model file not found" init failure now removes the incomplete model dir
and the leftover partial archive (containment-guarded to a direct child
of the fastembed cache root) and retries init exactly once, so the next
attempt re-downloads cleanly and recall self-heals.
Fixes#7916
roboomp
336975c46c