Add IT-One AI agent template, eval gate, and deployment skeleton

src/tools/web_search.py

@@ -0,0 +1,6 @@
+"""Search adapter boundary with an explicit, testable result shape."""
+
+def search(query: str, limit: int = 5) -> list[dict]:
+    if not query.strip():
+        return []
+    return [{"title": "offline-placeholder", "url": "about:blank", "snippet": query[:200]}][:limit]