feat: add DashScope custom voice enrollment flow

backend/routes/model_registry.py

@@ -20,6 +20,7 @@ from schemas import (
     ModelResourceUpsert,
 )
 from services.auth import require_admin
+from services.dashscope_voice import VoiceRequest, manage_voice
 from services.interface_catalog import validate_fields
 from services.masking import mask_secrets, merge_secrets
 from services.model_resource_tester import test_model_resource
@@ -377,3 +378,16 @@ async def delete_model_resource(
     await session.delete(row)
     await session.commit()
     return {"ok": True}
+
+
+@router.post("/model-resources/dashscope/voice")
+async def manage_dashscope_voice(request: VoiceRequest, session: AsyncSession = Depends(get_session)):
+    """Create/query a voice using draft settings and server-held credentials."""
+    stored = {}
+    if request.resource_id:
+        row = await session.get(ModelResource, request.resource_id)
+        if not row or row.interface_type != "dashscope-tts":
+            raise HTTPException(404, "百炼 TTS 模型资源不存在")
+        stored = row.secrets or {}
+    key = merge_secrets({"apiKey": request.api_key}, stored).get("apiKey", "")
+    return await manage_voice(request, key)