dashboard: plus de spam [Presets] Erreur depuis le polling

- dashboard_status utilise le cache presets au lieu d'appeler Jean
- jean_service_ok/ollama_service_ok silencieux (pas de warning log)
- slot check uniquement si jean est UP
- [Presets] Erreur ne vient plus du dashboard mais d'OpenFox/OpenWebUI

jean-router/app.py

@@ -157,7 +157,7 @@ def jean_alive() -> bool:
 
 
 def jean_service_ok() -> bool:
-    """Verifie que le service Jean repond (HTTP)"""
+    """Verifie que le service Jean repond (HTTP) — silencieux"""
     try:
         r = requests.get(f"http://{JEAN_WEB_HOST}:{JEAN_WEB_PORT}/api/presets", timeout=3)
         return r.ok
@@ -166,7 +166,7 @@ def jean_service_ok() -> bool:
 
 
 def ollama_service_ok() -> bool:
-    """Verifie que le service Ollama repond (HTTP)"""
+    """Verifie que le service Ollama repond (HTTP) — silencieux"""
     try:
         r = requests.get(f"http://{OLLAMA_DIRECT_HOST}:{OLLAMA_DIRECT_PORT}/api/version", timeout=2)
         return r.ok
@@ -1019,13 +1019,11 @@ def dashboard_status():
     jean_ok = jean_service_ok() if pc_alive else False
     olla_ok = ollama_service_ok() if pc_alive else False
 
-    try:
-        r = requests.get(f"http://{JEAN_WEB_HOST}:{JEAN_WEB_PORT}/api/presets", timeout=1)
-        presets_raw = r.json() if r.ok else []
-    except Exception:
-        presets_raw = []
+    # Presets depuis le cache (evite d'appeler get_presets qui log un warning si down)
+    presets_raw = presets_cache.get("data", []) if jean_ok else []
 
     slot_info = None
+    if jean_ok:
         try:
             r = requests.get(f"http://{JEAN_WEB_HOST}:{JEAN_WEB_PORT}/slots", timeout=1)
             if r.ok:
@@ -1044,6 +1042,7 @@ def dashboard_status():
     active = get_active_preset()
     with stats_lock:
         stats = dict(request_stats)
+        stats["last_requests"] = list(stats.get("last_requests", []))
 
     return jsonify({
         "pc": {
@@ -1154,8 +1153,8 @@ h1{font-size:18px;color:var(--purple);margin-bottom:12px}
 .badge-red{background:#3a1a1a;color:var(--red);border:1px solid var(--red)}
 .badge-blue{background:#1a2a3a;color:var(--blue);border:1px solid var(--blue)}
 #logs{grid-column:1/-1;height:400px;overflow-y:auto;font-size:12px;line-height:1.6;border:1px solid var(--border);border-radius:6px;padding:10px;background:#0a0e13}
-#logs .error{color:var(--red)}
-#logs .warn{color:#f0883e;font-weight:500}
+#logs .error{color:#ff7b72;background:#1a0a0a;padding:1px 4px;border-radius:3px;display:inline-block;max-width:100%;word-break:break-all}
+#logs .warn{color:#ffa657;background:#1a1008;padding:1px 4px;border-radius:3px;display:inline-block;max-width:100%;word-break:break-all}
 #logs .info{color:var(--muted)}
 #logs .debug{color:#484f58}
 #logs .highlight{color:var(--green);font-weight:700}