fixed chat textjson format, selected session for all, fixed android echo

bridge/aria_bridge.py

@@ -30,6 +30,7 @@ import wave
 from pathlib import Path
 from typing import Optional
 
+import urllib.request
 import numpy as np
 import sounddevice as sd
 import websockets
@@ -59,6 +60,7 @@ RVS_PORT = os.getenv("RVS_PORT", "443")      # Port des RVS
 RVS_TLS = os.getenv("RVS_TLS", "true")       # true = wss://, false = ws://
 RVS_TLS_FALLBACK = os.getenv("RVS_TLS_FALLBACK", "true")  # Bei TLS-Fehler ws:// versuchen
 RVS_TOKEN = os.getenv("RVS_TOKEN", "")       # Pairing-Token (gleich wie in der App)
+DIAGNOSTIC_URL = os.getenv("DIAGNOSTIC_URL", "http://127.0.0.1:3001")  # Diagnostic API
 WHISPER_MODEL = os.getenv("WHISPER_MODEL", "small")
 WHISPER_LANGUAGE = os.getenv("WHISPER_LANGUAGE", "de")
 
@@ -409,7 +411,8 @@ class ARIABridge:
         self.ws_url = self.config.get("ARIA_CORE_WS", CORE_WS_URL)
         self.core_auth_token = self.config.get("ARIA_AUTH_TOKEN", CORE_AUTH_TOKEN)
         self._req_id_counter = 0
-        self._session_key = "aria-bridge"  # Feste Session fuer die Bridge
+        self._session_key = "main"  # Fallback, wird per Diagnostic API aktualisiert
+        self._diagnostic_url = self.config.get("DIAGNOSTIC_URL", DIAGNOSTIC_URL)
         # RVS-Verbindungsinfo aus Config oder Env
         rvs_host = self.config.get("RVS_HOST", RVS_HOST)
         rvs_port = self.config.get("RVS_PORT", RVS_PORT)
@@ -790,12 +793,28 @@ class ARIABridge:
         else:
             logger.info("[core] TTS unterdrueckt (Modus: %s)", self.current_mode.config.name)
 
+    def _fetch_active_session(self) -> None:
+        """Holt die aktive Session vom Diagnostic-Endpoint."""
+        try:
+            req = urllib.request.Request(f"{self._diagnostic_url}/api/session", method="GET")
+            with urllib.request.urlopen(req, timeout=2) as resp:
+                data = json.loads(resp.read().decode())
+                new_key = data.get("sessionKey", "")
+                if new_key and new_key != self._session_key:
+                    logger.info("[session] Aktive Session gewechselt: %s -> %s", self._session_key, new_key)
+                    self._session_key = new_key
+        except Exception as e:
+            logger.debug("[session] Diagnostic nicht erreichbar (%s) — nutze '%s'", e, self._session_key)
+
     async def send_to_core(self, text: str, source: str = "bridge") -> None:
         """Sendet Text an aria-core (OpenClaw chat.send Protokoll)."""
         if self.ws_core is None:
             logger.error("[core] Nicht verbunden — Nachricht verworfen: '%s'", text[:60])
             return
 
+        # Aktive Session vom Diagnostic holen
+        self._fetch_active_session()
+
         req_id = self._next_req_id()
         message = json.dumps({
             "type": "req",