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.env.example

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+# Generate token: openssl rand -hex 32
+API_TOKEN=CHANGE_ME_LONG_RANDOM_TOKEN
+
+HOST=0.0.0.0
+PORT=8090
+
+# MQTT – same host/port as your openHAB Mosquitto
+MQTT_HOST=192.168.178.60
+MQTT_PORT=1884
+MQTT_USERNAME=
+MQTT_PASSWORD=
+MQTT_TLS=false
+MQTT_PREFIX=openhab/ai_bridge
+
+DB_PATH=/data/bridge.db
+MAX_HISTORY_MESSAGES=16
+SESSION_TTL_SECONDS=7200
+MAX_SESSIONS=20
+LOG_LEVEL=INFO
+
+# Pi speaker (ALSA)
+ALSA_PLAYBACK_DEVICE=default
+AUDIO_GID=29
+
+# Free Edge TTS (German)
+TTS_VOICE=de-DE-ConradNeural
+TTS_RATE=+0%
+TTS_VOLUME=+0%

Dockerfile

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+FROM python:3.12-slim-bookworm
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    alsa-utils libasound2 ffmpeg libatomic1 \
+    && rm -rf /var/lib/apt/lists/*
+RUN useradd --create-home --uid 10001 --shell /usr/sbin/nologin bridge
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+COPY app ./app
+RUN mkdir -p /data /data/audio && chown -R bridge:bridge /app /data
+USER bridge
+EXPOSE 8090
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8090"]

README.md

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+# openHAB AI Bridge – Simple (Text + Claude + Edge TTS)
+
+Kostenlose KI-Anbindung über **Ask Claude** (iOS Shortcut), ohne API-Key.
+
+## Ablauf
+
+```
+openHAB Textfeld
+    → Bridge (Session + Kontext in SQLite)
+    → MQTT notify
+    → openHAB Cloud Push ans iPhone
+    → Shortcut: Ask Claude
+    → Antwort zurück an Bridge
+    → Edge TTS → Lautsprecher am Pi
+```
+
+Rückfragen nutzen denselben Session-Kontext (Standard: 2 Stunden).
+
+## Schnellstart (Raspberry Pi)
+
+```bash
+cd ~/openhab-ai-bridge-simple
+cp .env.example .env
+openssl rand -hex 32   # → in .env als API_TOKEN eintragen
+getent group audio | cut -d: -f3   # → AUDIO_GID setzen
+
+docker compose build
+docker compose up -d
+curl http://127.0.0.1:8090/health
+```
+
+## openHAB
+
+1. Thing + Items aus `openhab/` übernehmen (Broker-UID anpassen).
+2. JS-Regel aus `openhab/ai_bridge.rules.js` (Token + IP eintragen).
+3. Regel „AI Bridge Notify → Push“ sendet die Cloud-Notification.
+
+## iOS Shortcut
+
+1. Trigger: openHAB-Notification mit Text `KI_DIALOG`
+2. GET `http://PI:8090/api/v1/active` (Header: `Authorization: Bearer TOKEN`)
+3. GET `/api/v1/sessions/{session_id}/context`
+4. Prompt aus Messages bauen → **Ask Claude**
+5. POST `/api/v1/sessions/{session_id}/answer`  `{"content":"..."}`
+6. POST `/api/v1/audio/speak`  `{"text":"..."}`  (Pi spricht)
+
+## API (alle außer /health brauchen Bearer-Token)
+
+| Methode | Pfad | Zweck |
+|---------|------|--------|
+| POST | /api/v1/dialog | Frage aus openHAB |
+| GET | /api/v1/active | Aktive Session |
+| GET | /api/v1/sessions/{id}/context | Gesprächsverlauf |
+| POST | /api/v1/sessions/{id}/answer | Claude-Antwort speichern |
+| POST | /api/v1/audio/speak | Edge TTS abspielen |
+| POST | /api/v1/sessions/{id}/end | Session beenden |
+
+## Sicherheit
+
+- Nur LAN, Port 8090 nicht nach außen freigeben
+- Langer zufälliger API_TOKEN
+- Docker: non-root, read-only root, dropped capabilities

docker-compose.yml

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+services:
+  openhab-ai-bridge:
+    build: .
+    container_name: openhab-ai-bridge
+    restart: unless-stopped
+    env_file: .env
+    ports:
+      - "8090:8090"
+    volumes:
+      - ./data:/data
+    devices:
+      - /dev/snd:/dev/snd
+    group_add:
+      - "${AUDIO_GID:-29}"
+    read_only: true
+    tmpfs:
+      - /tmp:size=32m,noexec,nosuid,nodev
+    security_opt:
+      - no-new-privileges:true
+    cap_drop:
+      - ALL
+    healthcheck:
+      test:
+        [
+          "CMD",
+          "python",
+          "-c",
+          "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8090/health',timeout=2).read()",
+        ]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s

requirements.txt

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+fastapi==0.116.1
+uvicorn[standard]==0.35.0
+paho-mqtt==2.1.0
+edge-tts==7.2.7