Add OpenSERP SDK usage examples

examples/ai/python-agent-tool/README.md

@@ -0,0 +1,11 @@
+# Agent search tool (Python)
+
+A `web_search(query)` function shaped to register as a tool for an LLM agent.
+It returns compact JSON-serializable results the model can read and cite.
+
+```bash
+pip install -r requirements.txt
+python main.py
+```
+
+Import `web_search` from [main.py](main.py) and register it with your agent framework.