fix post validation for roles

frigate/config/config.py

@@ -719,6 +719,18 @@ class FrigateConfig(FrigateBaseModel):
                 "Frigate+ is configured but clean snapshots are not enabled, submissions to Frigate+ will not be possible./"
             )
 
+        # Validate auth roles against cameras
+        camera_names = set(self.cameras.keys())
+
+        for role, allowed_cameras in self.auth.roles.items():
+            invalid_cameras = [
+                cam for cam in allowed_cameras if cam not in camera_names
+            ]
+            if invalid_cameras:
+                logger.warning(
+                    f"Role '{role}' references non-existent cameras: {invalid_cameras}. "
+                )
+
         return self
 
     @field_validator("cameras")
@@ -730,27 +742,6 @@ class FrigateConfig(FrigateBaseModel):
                 raise ValueError("Zones cannot share names with cameras")
         return v
 
-    @field_validator("auth")
-    @classmethod
-    def validate_auth_roles(cls, v: AuthConfig, info: ValidationInfo) -> AuthConfig:
-        # Access cameras from the validated model
-        frigate_config = info.data.get("cameras", {})
-        camera_names = (
-            set(frigate_config.keys()) if isinstance(frigate_config, dict) else set()
-        )
-
-        for role, allowed_cameras in v.roles.items():
-            invalid_cameras = [
-                cam for cam in allowed_cameras if cam not in camera_names
-            ]
-            if invalid_cameras:
-                logger.warning(
-                    f"Role '{role}' references non-existent cameras: {invalid_cameras}. "
-                    f"These will grant no access until cameras are added."
-                )
-
-        return v
-
     @classmethod
     def load(cls, **kwargs):
         """Loads the Frigate config file, runs migrations, and creates the config object."""