update

Dockerfile

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+# Stage 1: Frontend bauen
+FROM node:20-alpine AS frontend
+WORKDIR /build
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm install
+COPY frontend/ ./
+RUN npm run build
+
+# Stage 2: Runtime — bewusst schlanker als beim alten creator:
+# kein Playwright/Chromium, kein Tesseract (creator2 braucht beides nicht).
+FROM python:3.12-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl \
+    ca-certificates \
+    poppler-utils \
+    && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+    && apt-get install -y nodejs \
+    && npm install -g @anthropic-ai/claude-code opencode-ai \
+    && pip install --no-cache-dir uv \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m -u 1000 app
+
+COPY backend/requirements.txt /app/backend/requirements.txt
+# torch als CPU-Build (~190 MB) — sonst zieht sentence-transformers die
+# CUDA-Variante (~2,5 GB).
+RUN pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cpu \
+    && pip install --no-cache-dir -r /app/backend/requirements.txt
+
+COPY --chown=app:app backend/ /app/backend/
+COPY --chown=app:app templates/ /app/templates/
+COPY --chown=app:app --from=frontend /build/dist /app/frontend/dist
+COPY --chown=app:app dev-ops/opencode.json /home/app/.config/opencode/opencode.json
+
+RUN mkdir -p /app/storage /app/topics && chown -R app:app /app
+
+USER app
+# Embedding-Modell ins Image backen — sonst lädt jeder Container-Neustart
+# ~120 MB von Hugging Face (Dedup-Kandidaten, embedding.py)
+RUN python3 -c "from sentence_transformers import SentenceTransformer; \
+    SentenceTransformer('sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2')"
+
+WORKDIR /app/backend
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]