jean-router: detection a 3 niveaux - PC / Jean / Ollama

- PC: TCP connect (ON/OFF) → WoL uniquement si OFF
- Jean: HTTP /api/presets (UP/DOWN)
- Ollama: HTTP /api/version (UP/DOWN)
- Dashboard: 3 lignes de statut distinctes
- WoL ne se declenche que si PC OFF, pas si service DOWN

jean-router/app.py

@@ -146,16 +146,34 @@ def jean_alive() -> bool:
             alive = True
             break
         except ConnectionRefusedError:
-            alive = True  # PC on, service down
+            alive = True
             break
         except (socket.timeout, OSError):
-            continue  # PC off ou inaccessible
+            continue
 
     jean_alive_cache["alive"] = alive
     jean_alive_cache["timestamp"] = now
     return alive
 
 
+def jean_service_ok() -> bool:
+    """Verifie que le service Jean repond (HTTP)"""
+    try:
+        r = requests.get(f"http://{JEAN_WEB_HOST}:{JEAN_WEB_PORT}/api/presets", timeout=3)
+        return r.ok
+    except Exception:
+        return False
+
+
+def ollama_service_ok() -> bool:
+    """Verifie que le service Ollama repond (HTTP)"""
+    try:
+        r = requests.get(f"http://{OLLAMA_DIRECT_HOST}:{OLLAMA_DIRECT_PORT}/api/version", timeout=2)
+        return r.ok
+    except Exception:
+        return False
+
+
 def wait_for_jean(trigger_wol=True):
     """Attend que Jean soit accessible. Si ENABLE_WOL et trigger_wol, envoie WoL d'abord."""
     alive = jean_alive()
@@ -888,6 +906,9 @@ def chat_completions():
                 data, fwd_headers
             )
 
+        if not jean_service_ok():
+            log.warning(f"[Router] PC ON mais Jean DOWN, requete vers {model_id} risque d'echouer")
+
         if not ensure_vram_for_backend("jean"):
             return jsonify({"error": "Failed to prepare VRAM for Jean"}), 503
 
@@ -994,13 +1015,9 @@ def dashboard():
 @app.route("/api/dashboard/status")
 def dashboard_status():
     """Etat complet en JSON"""
-    jean_ok = jean_alive()
-    olla_ok = False
-    try:
-        r = requests.get(f"http://{OLLAMA_DIRECT_HOST}:{OLLAMA_DIRECT_PORT}/api/version", timeout=2)
-        olla_ok = r.ok
-    except Exception:
-        pass
+    pc_alive = jean_alive()
+    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)
@@ -1029,6 +1046,10 @@ def dashboard_status():
         stats = dict(request_stats)
 
     return jsonify({
+        "pc": {
+            "alive": pc_alive,
+            "host": JEAN_WEB_HOST,
+        },
         "jean": {
             "alive": jean_ok,
             "host": f"{JEAN_WEB_HOST}:{JEAN_WEB_PORT}",
@@ -1134,7 +1155,7 @@ h1{font-size:18px;color:var(--purple);margin-bottom:12px}
 .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:var(--yellow)}
+#logs .warn{color:#f0883e;font-weight:500}
 #logs .info{color:var(--muted)}
 #logs .debug{color:#484f58}
 #logs .highlight{color:var(--green);font-weight:700}
@@ -1157,10 +1178,11 @@ h1{font-size:18px;color:var(--purple);margin-bottom:12px}
 <div class="grid">
   <div class="card">
     <h2>🔌 Statut</h2>
-    <div class="row"><span class="label">Jean</span><span id="jean-status">-</span></div>
-    <div class="row"><span class="label">Ollama</span><span id="ollama-status">-</span></div>
-    <div class="row"><span class="label">VRAM Backend</span><span id="vram-status">-</span></div>
-    <div class="row"><span class="label">Preset actif</span><span id="active-preset">-</span></div>
+    <div class="row"><span class="label">PC Gaming</span><span id="pc-status">-</span></div>
+    <div class="row"><span class="label">Jean (8090)</span><span id="jean-status">-</span></div>
+    <div class="row"><span class="label">Ollama (11434)</span><span id="ollama-status">-</span></div>
+    <div class="row"><span class="label">VRAM</span><span id="vram-status">-</span></div>
+    <div class="row"><span class="label">Preset</span><span id="active-preset">-</span></div>
   </div>
   <div class="card">
     <h2>🎰 Slot Jean</h2>
@@ -1211,9 +1233,18 @@ async function fetchStatus() {
     const d = await r.json();
 
     // Status dots
-    $('#jean-status').innerHTML = (d.jean.alive ? '<span class="status-dot on"></span>' : '<span class="status-dot off"></span>') + 'Jean : ' + d.jean.host;
-    $('#ollama-status').innerHTML = (d.ollama.alive ? '<span class="status-dot on"></span>' : '<span class="status-dot off"></span>') + 'Ollama : ' + d.ollama.host;
-    $('#vram-status').innerHTML = (d.jean.vram_backend === 'jean' ? '<span class="badge badge-blue">JEAN</span>' : '<span class="badge badge-green">OLLAMA</span>');
+    $('#pc-status').innerHTML = (d.pc.alive
+      ? '<span class="status-dot on"></span> ON'
+      : '<span class="status-dot off"></span> OFF — WoL requis');
+    $('#jean-status').innerHTML = (d.jean.alive
+      ? '<span class="status-dot on"></span> UP'
+      : (d.pc.alive ? '<span class="status-dot warn"></span> DOWN (PC ON)' : '<span class="status-dot off"></span> DOWN'));
+    $('#ollama-status').innerHTML = (d.ollama.alive
+      ? '<span class="status-dot on"></span> UP'
+      : (d.pc.alive ? '<span class="status-dot warn"></span> DOWN (PC ON)' : '<span class="status-dot off"></span> DOWN'));
+    $('#vram-status').innerHTML = (d.jean.vram_backend === 'jean'
+      ? '<span class="badge badge-blue">JEAN</span>'
+      : '<span class="badge badge-green">OLLAMA</span>');
     $('#active-preset').innerHTML = '<span class="badge badge-green">' + d.jean.active_preset + '</span>';
 
     // Slot