TTS-Slots (Piper CPU, Qwen3-TTS auf Ada), M4000 außer Betrieb, Engine-Grenzen im Placement (ADR-0006)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

core/src/knaster/canary.py

@@ -8,6 +8,7 @@ from dataclasses import dataclass
 
 from prometheus_client import Gauge
 
+from .audio import wav_duration
 from .embeddings import Embedder
 from .llm import ChatClient, LLMError
 from .registry import Registry, Slot
@@ -51,7 +52,12 @@ class CanaryProber:
     def probe(self, slot: Slot) -> ProbeResult:
         start = time.monotonic()
         try:
-            if slot.spec.kind == "embedding":
+            if slot.spec.kind == "tts":
+                speech = getattr(self.chat, "speech", None)
+                if speech is None:
+                    return ProbeResult(slot.name, True, True, 0.0, "kein Speech-Client")
+                ok = wav_duration(speech(slot.spec.litellm_model, "Test.")) >= 0.2
+            elif slot.spec.kind == "embedding":
                 embedder = self.embedder_for.get(slot.name)
                 if embedder is None:
                     return ProbeResult(slot.name, True, True, 0.0, "kein Embedder konfiguriert")