{"id":"LGT-006","domain":"lighting","priority":91,"hard":true,"logic":"all","when":[{"path":"lighting.shadow_direction_drift","op":"eq","value":true}],"then":[{"op":"add_flag","value":"LIGHT_DIRECTION_DRIFT"},{"op":"propose","value":"regenerate_relight_or_explain_source_change"}],"rationale":"Shadow direction is a strong continuity cue.","tags":["continuity","generated"],"category":"Lighting"}