fixed, session selector at start and fixed load chat

diagnostic/index.html

@@ -570,8 +570,8 @@
         }
         // Chat-History (nach F5 / Reconnect)
         if (msg.type === 'chat_history') {
-          if (msg.messages && msg.messages.length > 0) {
           chatBox.innerHTML = '';
+          if (msg.messages && msg.messages.length > 0) {
             for (const m of msg.messages) {
               const el = document.createElement('div');
               el.className = `chat-msg ${m.type}`;

diagnostic/server.js

@@ -35,7 +35,7 @@ const state = {
   rvs: { status: "disconnected", lastError: null },
   proxy: { status: "unknown", lastError: null },
 };
-const SESSION_KEY_FILE = "/tmp/aria-active-session";
+const SESSION_KEY_FILE = "/data/active-session";
 let activeSessionKey = (() => {
   try { return fs.readFileSync(SESSION_KEY_FILE, "utf-8").trim(); } catch { return "main"; }
 })();

docker-compose.yml

@@ -96,6 +96,7 @@ services:
     network_mode: "service:aria"                   # Teilt Netzwerk mit aria-core → localhost:18789
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
+      - ./aria-data/config/diag-state:/data           # Persistenter State (aktive Session etc.)
     environment:
       - ARIA_AUTH_TOKEN=${ARIA_AUTH_TOKEN:-}
       - PROXY_URL=http://proxy:3456