Add incident exports, queue SLA, and OpenWrt diff utilities

services/queue.py

@@ -187,3 +187,11 @@ def format_history(limit: int = 20) -> str:
             f"(wait {item['wait_sec']}s, run {item['runtime_sec']}s)"
         )
     return "\n".join(lines)
+
+
+def get_history_raw() -> list[dict[str, Any]]:
+    return list(_history)
+
+
+def get_stats() -> dict[str, Any]:
+    return dict(_stats)