### Removed: off-charter Python runtime (`wai-neural/`)

- Moved `wai-neural/` OUT of this repo to `../../wai-neural-prototype/`.
  It was a parallel **Python** runtime (`WAI4` generative-semantic
  container + CLIP-embedding payloads + SD-XL-Turbo regeneration +
  CLIP-similarity conformance) — a disconnected second implementation in
  the wrong language. The reference implementation is **Rust** (`wai-rs`);
  nothing referenced the Python package. The *idea* it proved — a
  behavioral/perceptual neural path that conforms by semantic similarity
  rather than a weights hash — is sound and belongs in `wai-rs` as a future
  Rust path alongside the bit-exact, prior-pinned path. The Python is kept
  only as a prototype reference (and it hardcodes a machine-local model
  path, so it never ran portably). This does NOT touch the Python
  model-export tools in `tools/`, which are legitimate dev tooling.

