feat: unlock in-game galleries per owned version

backend/app/schemas.py

@@ -68,6 +68,8 @@ class OwnerOut(ORM):
 
 
 class VersionOut(ORM):
+    gallery_unlocked: bool = False
+    gallery_available: bool = False
     revision_id: str | None = None
     base_revision_id: str | None = None
     id: int
@@ -141,6 +143,10 @@ class PublishIn(BaseModel):
     make_main: bool = False
 
 
+class GallerySettingsIn(BaseModel):
+    gallery_unlocked: bool
+
+
 class HistoryOut(ORM):
     id: int
     note: str