memory: chatterbox-fast donut voice added + contract delivered to ratatoskr-dev

Operator-directed donut add (zonos Donut.wav -> chatterbox /refs/donut.wav,
live glob no restart, verified 7.5s synth). Answered ratatoskr's 8-Q contract
ask for their TTS migration off Zonos: POST /tts (not OpenAI), no affect dials
(Turbo no-ops), streaming shape identical to Zonos, 24kHz, English-only.

persistent-memory.md

@@ -130,6 +130,8 @@ _As of 2026-08-07 — heavy overnight session landed; b182 deployed and the oper
 
 ## Recent decisions
 
+- `[2026-08-07]` **chatterbox-fast: donut voice added + full contract delivered to ratatoskr-dev (their TTS migration off Zonos).** Operator-directed. Copied `zonos-gateway/voices/Donut.wav` → chatterbox `/refs` (`/worktank/chatterbox/reference_audio/donut.wav` — the reference_audio SUBDIR is lkraven-owned so no sudo despite `/worktank` root; container globs `/refs` live → **NO restart**), exposed as `voice:"donut"` (lowercase); verified clean 7.5s synth (24kHz, RTF ~0.31). A/B booth (chatterbox vs zonos donut, same line) at `http://10.100.10.50:8090/b/donut-chatterbox/`. Answered ratatoskr's 8-question contract ask from the live gateway (`local/chatterbox-fast:v1`) + source: **NOT OpenAI-shaped** (`POST /tts`; body `text`/`voice`/`format`/`stream`, not `input`/`model`/`response_format`); **NO affect dials** (Turbo ignores cfg_weight/min_p/exaggeration — the architecture-changing answer they flagged; **Zonos stays the only fleet TTS with real emotion steering**); streaming WAV placeholder-header shape IDENTICAL to Zonos (their per-chunk Web Audio path survives); SR 24000 (Zonos 44100); server chunks arbitrary-length text internally (no client-side chunking, unlike Zonos's 71.2s cap); English-only, no language pin. **FYI-worthy (operator):** ratatoskr is moving its RP-surface TTS OFF Zonos back to chatterbox-fast → loses the live-PAD affect coupling (heavy Zonos emotion investment) — their call, trade-off flagged to them. auto-memory `reference_chatterbox_fast_repo` enriched w/ the live contract. [[reference_zonos_tts_stack]]
+
 - `[2026-08-07]` **Fleet reranker cut over: Qwen3-Reranker-0.6B → BAAI/bge-reranker-v2-m3 (Brokkr R43).** The incumbent was measured HARMING 80/90 fleet queries (no-reranker beat it 89/90 vs 56/90). R43 bake-off: the A2 control (same Qwen weights, seq-cls head) scored identical to the incumbent → proved the fault is a training-prior not the serving head → cancelled the expensive Qwen3-4B arm; A3 (bge-v2-m3) won on multilingual safety + bare-name recovery. LiteLLM `reranker` repointed incumbent→A3 :8013 (boundary 2026-08-06T17:37:48Z, config-edit + ~52s gateway restart); **R42 v13 gate PASSED first-ever** (56/90→90/90). Incumbent kept warm :8002 (rollback via `qwen3-reranker` alias), A4 fallback :8014. Full arc + rollback runbook `docs/pfi/reranker-selection-ledger.md`; commits ad2df89/2c11748/377f8a4 (unpushed). auto-memories: the earlier reranker-serving notes.
 
 - `[2026-08-07]` **Personal-Worldtree kb-contamination incident (WT #394) diagnosed; attribution CLOSED UNRESOLVED.** A reconcile `WingStore._embed` full-tree walk (kb `fs_root=KB_PATH` root, sibling wings nested) swept 5,354 fiction+main rows into personal's `knowledge_base` (2 superseded generations served as current). Fixed by WT #394 (aca39a1, kb walks exclude sibling wings; ships b182). Trigger un-attributable — peer reconcile via the SHARED infra-ops identity + 0 dockerd exec-logging = fingerprint-less. Durable finding → auto-memory `infra_ops_shared_identity_attribution_gap`, PARKED (operator ruled A) into [[project_migrate_infra_access_to_claude_credentials]]. Evidence hold on the 5,354 rows until operator sequences cleanup (w/ Brokkr, on #394's agenda).