Remove unused Python STT interaction language fields

Author: digitallysavvy

src/agora_agent/agentkit/vendors/stt.py

@@ -4,9 +4,6 @@
 
 from .base import BaseSTT
 
-# BCP-47 language tag for asr.language (the Agora interaction language).
-InteractionLanguage = str
-
 _DEEPGRAM_MANAGED_MODELS = {"nova-2", "nova-3"}
 
 
@@ -15,7 +12,6 @@ class SpeechmaticsSTTOptions(BaseModel):
 
     api_key: str = Field(..., description="Speechmatics API key")
     language: str = Field(..., description="Language code (e.g., en, es, fr)")
-    interaction_language: Optional[InteractionLanguage] = Field(default=None, description="Agora interaction language for asr.language")
     model: Optional[str] = Field(default=None, description="Model name")
     uri: Optional[str] = Field(default=None, description="Speechmatics streaming WebSocket URL")
     additional_params: Optional[Dict[str, Any]] = Field(default=None)
@@ -49,7 +45,6 @@ class DeepgramSTTOptions(BaseModel):
     model: Optional[str] = Field(default=None, description="Model (e.g., nova-2, enhanced, base)")
     language: Optional[str] = Field(default=None, description="Language code (e.g., en-US)")
     keyterm: Optional[str] = Field(default=None, description="Boost specialized terms and brands for Deepgram")
-    interaction_language: Optional[InteractionLanguage] = Field(default=None, description="Agora interaction language for asr.language")
     smart_format: Optional[bool] = Field(default=None, description="Enable smart formatting")
     punctuation: Optional[bool] = Field(default=None, description="Enable punctuation")
     additional_params: Optional[Dict[str, Any]] = Field(default=None)
@@ -267,7 +262,6 @@ class SarvamSTTOptions(BaseModel):
 
     api_key: str = Field(..., description="Sarvam API key")
     language: str = Field(..., description="Language code (e.g., en, hi, ta)")
-    interaction_language: Optional[InteractionLanguage] = Field(default=None, description="Agora interaction language for asr.language")
     model: Optional[str] = Field(default=None, description="Model name")
     additional_params: Optional[Dict[str, Any]] = Field(default=None)