v4.4.1

Patch. The ONNX fallback actually works now — and the repo's three-AI arbitration had its first real run.

Fixed

• v4.4.0's ONNX fallback never worked on a clean machine (KJC-BUG-0128): the kj env install index probe opened the vector store just to check — and opening runs the DDL, creating the vec table at Ollama's 768 dims. The ONNX fallback then failed every 384-dim insert with a dimension mismatch. The probe no longer creates anything (file check first), an EMPTY wrong-dim store is reset (read-only plain-sqlite inspection; a store with data is never touched), and the return-to-Ollama hint now describes the real procedure instead of a nonexistent --rebuild flag.

Process milestone: the cross-AI reviewer rejected this fix on a factually wrong premise — kj solomon (Copilot as arbiter) ruled for the brain on empirical evidence, the first real arbitration in this repo's own gate.