Added image generation to blog writer

backend/services/llm_providers/image_generation/base.py

@@ -0,0 +1,37 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Optional, Dict, Any, Protocol
+
+
+@dataclass
+class ImageGenerationOptions:
+    prompt: str
+    negative_prompt: Optional[str] = None
+    width: int = 1024
+    height: int = 1024
+    guidance_scale: Optional[float] = None
+    steps: Optional[int] = None
+    seed: Optional[int] = None
+    model: Optional[str] = None
+    extra: Optional[Dict[str, Any]] = None
+
+
+@dataclass
+class ImageGenerationResult:
+    image_bytes: bytes
+    width: int
+    height: int
+    provider: str
+    model: Optional[str] = None
+    seed: Optional[int] = None
+    metadata: Optional[Dict[str, Any]] = None
+
+
+class ImageGenerationProvider(Protocol):
+    """Protocol for image generation providers."""
+
+    def generate(self, options: ImageGenerationOptions) -> ImageGenerationResult:
+        ...
+
+