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>

web/app/routers/history.py

@@ -0,0 +1,45 @@
+import json
+from fastapi import APIRouter
+from app.config import LOG_DIR
+
+router = APIRouter()
+
+
+@router.get("")
+async def list_reports():
+    """List all daily detection reports with summaries."""
+    reports = []
+    for path in sorted(LOG_DIR.glob("report_*.json"), reverse=True):
+        try:
+            with open(path) as f:
+                data = json.load(f)
+            iso_count = len(data.get("isotopes_detected", []))
+            reports.append({
+                "date": data.get("date", ""),
+                "live_time_hours": data.get("live_time_hours", 0),
+                "total_counts": data.get("total_counts", 0),
+                "cps_mean": data.get("cps_mean", 0),
+                "background_subtracted": data.get("background_subtracted", False),
+                "isotope_count": iso_count,
+                "isotopes": [i["isotope"] for i in data.get("isotopes_detected", [])],
+            })
+        except (json.JSONDecodeError, OSError):
+            continue
+    return reports
+
+
+@router.get("/{date}")
+async def get_report(date: str):
+    """Get a specific day's full report."""
+    report_path = LOG_DIR / f"report_{date}.json"
+    if not report_path.exists():
+        from fastapi import HTTPException
+        raise HTTPException(status_code=404, detail=f"No report for {date}")
+
+    try:
+        with open(report_path) as f:
+            data = json.load(f)
+    except (json.JSONDecodeError, OSError):
+        raise HTTPException(status_code=500, detail="Report file corrupt")
+
+    return data