Refactor bot and integrate services

services/artifacts.py

@@ -0,0 +1,22 @@
+import json
+from datetime import datetime
+from pathlib import Path
+
+
+def artifact_last(state_file: str) -> str:
+    data = json.loads(Path(state_file).read_text())
+    items = sorted(
+        data.items(),
+        key=lambda x: x[1]["updated_at"],
+        reverse=True
+    )
+    name, info = items[0]
+    t = datetime.fromisoformat(info["updated_at"])
+    age_h = int((datetime.now() - t).total_seconds() / 3600)
+
+    return (
+        "🧉 Last artifact\n\n"
+        f"{name}\n"
+        f"Updated: {t:%Y-%m-%d %H:%M}\n"
+        f"Age: {age_h}h"
+    )