telephony: cut TTS over to GX10 (10.0.56.14:30850, amy-medium); keep edge1 warm

- Tts.PiperUrl edge1 10.0.57.17:8500 -> GX10 NodePort 10.0.56.14:30850
- add netpol egress to GX10 TTS; keep edge1 egress as rollback target
- DefaultEngine piper / SampleRate 8000 unchanged (sln16 16kHz path)

apps/telephony/telephony.yaml

@@ -1,7 +1,8 @@
 # FlowerCore.Telephony - Blazor Server + REST API + Twilio IVR
 # ArgoCD managed - BlueJay Lab
 # Credentials: 1Password → OnePasswordItem CRD → K8s Secret (twilio-credentials)
-# TTS: Piper on edge1 (10.0.57.17:8500) — endpoint /tts with {"text":"..."}
+# TTS: Piper on GX10 (10.0.56.14:30850, en_US-amy-medium) — endpoint /tts with {"text":"..."}
+#      edge1 (10.0.57.17:8500, amy-low) kept as warm fallback (revert PiperUrl to roll back)
 # Public: telephony.flowercore.io via Cloudflare origin cert
 ---
 apiVersion: v1
@@ -73,7 +74,7 @@ data:
         "Transport": "udp"
       },
       "Tts": {
-        "PiperUrl": "http://10.0.57.17:8500",
+        "PiperUrl": "http://10.0.56.14:30850",
         "DefaultEngine": "piper",
         "SampleRate": 8000
       },
@@ -323,7 +324,14 @@ spec:
           protocol: UDP
         - port: 53
           protocol: TCP
-    # Allow Piper TTS on edge1 (10.0.57.17:8500)
+    # Allow Piper TTS on GX10 (10.0.56.14:30850) — primary
+    - to:
+        - ipBlock:
+            cidr: 10.0.56.14/32
+      ports:
+        - port: 30850
+          protocol: TCP
+    # Allow Piper TTS on edge1 (10.0.57.17:8500) — warm fallback / rollback target
     - to:
         - ipBlock:
             cidr: 10.0.57.17/32