Dashboard web FastAPI + Chart.js

- 4 vues : spectre temps reel, historique detections, background, timeline CPS
- API REST : /api/status, /api/spectrum/current, /api/spectrum/difference,
  /api/background, /api/background/spectrum, /api/history, /api/cps/timeline
- Frontend vanilla JS + Chart.js (pas de Node.js, leger pour Pi 4)
- Moniteur modifie pour exporter son etat dans /data/monitor_state.json
  et le CPS dans /data/cps_log.jsonl chaque cycle
- Nouveau conteneur Docker 'web' sur port 8080
- Theme sombre, calibration energie (E = 0.33 + 2.97 * canal)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -42,6 +42,8 @@ services:
       - MODEL_PATH=/models/vega_best.pt
       - ISOTOPE_INDEX_PATH=/models/vega_isotope_index.txt
       - BACKGROUND_PATH=/data/background_24h.npy
+      - STATE_PATH=/data/monitor_state.json
+      - CPS_LOG_PATH=/data/cps_log.jsonl
       - VEGA_ML_PATH=/models/vega_ml
       - VEGA_DEVICE=cpu
       - LOG_DIR=/logs
@@ -52,4 +54,25 @@ services:
     depends_on:
       train:
         condition: service_completed_successfully
+    restart: unless-stopped
+
+  web:
+    build:
+      context: ./web
+      dockerfile: Dockerfile
+    ports:
+      - "8080:8080"
+    volumes:
+      - ./data:/data:ro
+      - ./logs:/logs:ro
+      - ./models/vega_isotope_index.txt:/models/vega_isotope_index.txt:ro
+    environment:
+      - STATE_PATH=/data/monitor_state.json
+      - CPS_LOG_PATH=/data/cps_log.jsonl
+      - BACKGROUND_PATH=/data/background_24h.npy
+      - BACKGROUND_SNAPSHOT_PATH=/data/background_snapshot.json
+      - LOG_DIR=/logs
+      - ISOTOPE_INDEX_PATH=/models/vega_isotope_index.txt
+      - ENERGY_CALIBRATION_OFFSET=0.33
+      - ENERGY_CALIBRATION_SLOPE=2.97
     restart: unless-stopped