feat: exclude source photos from automatic selection

pigway_frame_flow/models.py

@@ -377,6 +377,7 @@ class Readiness(BaseModel):
 
 
 class Asset(BaseModel):
+    excluded: bool = False
     source_path: str | None = None
     starred: bool = False
     origin: Literal["manual", "task", "external", "template", "unknown"] = "unknown"
@@ -502,10 +503,20 @@ class WidgetState(StrictModel):
     writable: Literal[False] = False
 
 
+class ImageExclusion(StrictModel):
+    excluded: bool
+
+
+class PhotoPreference(StrictModel):
+    item_id: str = Field(min_length=1, max_length=4096)
+    starred: bool | None = None
+    excluded: bool | None = None
+
+
 class ImageStar(StrictModel):
     starred: bool
 
 
 class AssetBatch(StrictModel):
     asset_ids: list[str] = Field(min_length=1, max_length=100)
-    action: Literal["delete", "star", "unstar"]
+    action: Literal["delete", "star", "unstar", "exclude", "include"]