### Neural condition: working end-to-end

- `tools/wai_encodec_encode.py` / `wai_encodec_decode.py` — first
  working **neural capability** (`wai.neural.encodec32`): source
  encodes audio via locally-installed EnCodec, ships only the
  quantized tokens in a standard WAI envelope (236 MB of model
  weights stay on the source's disk, never enter the envelope); sink
  with EnCodec installed decodes. Measured: **5 s of audio → 2.3 KB
  envelope (141× compressed)**, model on the wire = 0 B.
- Rust SDK gains `wai inspect` CLI: parses an envelope, resolves the
  capability + fallback against `sink_capabilities()`, and prints
  verdict (`DECODABLE via primary` / `via fallback` / `INERT here`).

