TTS-Slots (Piper CPU, Qwen3-TTS auf Ada), M4000 außer Betrieb, Engine-Grenzen im Placement (ADR-0006)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

deploy/docker/tts-piper.Dockerfile

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+# Piper-TTS hinter dem OpenAI-kompatiblen knaster-TTS-Dienst. Build-Kontext: Repo-Wurzel.
+# Hinweis: piper-tts ab 1.3 ist GPL-3.0 – läuft hier als eigenständiger Dienst.
+FROM python:3.12-slim
+
+ARG PIPER_VERSION=1.3.0
+ARG VOICE_BASE=https://huggingface.co/rhasspy/piper-voices/resolve/main/de/de_DE
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1
+WORKDIR /app
+
+RUN apt-get update -qq && apt-get install -y -qq --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
+RUN pip install "piper-tts==${PIPER_VERSION}"
+
+COPY core/pyproject.toml core/pyproject.toml
+COPY core/src core/src
+RUN pip install ./core
+
+RUN mkdir -p /voices && cd /voices \
+ && curl -fsSL -o de_DE-thorsten-medium.onnx      "${VOICE_BASE}/thorsten/medium/de_DE-thorsten-medium.onnx" \
+ && curl -fsSL -o de_DE-thorsten-medium.onnx.json "${VOICE_BASE}/thorsten/medium/de_DE-thorsten-medium.onnx.json"
+
+ENV KNASTER_TTS_VOICES=thorsten=/voices/de_DE-thorsten-medium.onnx \
+    KNASTER_TTS_CMD="piper -m {model} -f {out}" \
+    KNASTER_TTS_PARALLEL=2
+
+RUN useradd --system --uid 10002 tts
+USER tts
+EXPOSE 8090
+HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
+  CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8090/health', timeout=4)"
+CMD ["knaster", "tts-serve", "--host", "0.0.0.0", "--port", "8090"]