[API Nodes] add CAMB AI nodes

comfy_api_nodes/apis/cambai.py

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+from pydantic import BaseModel, Field
+
+
+class CambAITTSRequest(BaseModel):
+    text: str = Field(..., description="Text to convert to speech")
+    voice_id: int = Field(..., description="Voice ID for TTS")
+    language: str = Field(..., description="Language code (e.g., 'en-us')")
+    speech_model: str = Field(..., description="TTS model to use")
+    output_configuration: dict = Field(
+        default_factory=lambda: {"format": "wav"},
+        description="Output format configuration",
+    )
+
+
+class CambAITranslateRequest(BaseModel):
+    source_language: int = Field(..., description="Source language ID")
+    target_language: int = Field(..., description="Target language ID")
+    texts: list[str] = Field(..., description="Texts to translate")
+
+
+class CambAITaskResponse(BaseModel):
+    task_id: str = Field(..., description="Async task ID")
+
+
+class CambAIPollResult(BaseModel):
+    status: str = Field(..., description="Task status")
+    run_id: int | None = Field(None, description="Run ID for fetching results")
+
+
+class CambAITranslateResult(BaseModel):
+    texts: list[str] = Field(default_factory=list, description="Translated texts")
+
+
+class CambAIDialogueItem(BaseModel):
+    start: float = Field(..., description="Start time in seconds")
+    end: float = Field(..., description="End time in seconds")
+    text: str = Field(..., description="Dialogue text")
+    speaker: str = Field(..., description="Speaker identifier")
+
+
+class CambAIVoiceCloneResponse(BaseModel):
+    voice_id: int = Field(..., description="Cloned voice ID")
+
+
+class CambAITextToSoundRequest(BaseModel):
+    prompt: str = Field(..., description="Text prompt for sound generation")
+    audio_type: str = Field(..., description="Type of audio: 'sound' or 'music'")
+    duration: float = Field(..., description="Duration in seconds")