fix: 优化架构

engine/adapters/image/stability_adapter.py

@@ -0,0 +1,21 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from engine.config import AppConfig
+
+from .base import BaseImageGen
+
+
+class StabilityAdapter(BaseImageGen):
+    """
+    Placeholder for Stability AI image generation.
+    Add implementation + dependencies when needed.
+    """
+
+    def __init__(self, cfg: AppConfig):
+        self.cfg = cfg
+
+    def generate(self, prompt: dict[str, str], output_dir: str | Path) -> str:
+        raise NotImplementedError("StabilityAdapter not implemented yet")
+