chore: import upstream snapshot with attribution

examples/sandbox/misc/reference_policy_mcp_server.py

@@ -0,0 +1,25 @@
+from mcp.server.fastmcp import FastMCP
+
+mcp = FastMCP("Reference Policy Server")
+
+
+@mcp.tool()
+def get_policy_reference(topic: str) -> str:
+    """Return short internal policy guidance for a supported topic."""
+    normalized = topic.strip().lower()
+    if "discount" in normalized:
+        return (
+            "Discount policy: discounts from 11 to 15 percent require regional sales director "
+            "approval. Discounts above 15 percent require both finance and the regional sales "
+            "director."
+        )
+    if "security" in normalized or "review" in normalized:
+        return (
+            "Security review policy: any new data export workflow must finish security review "
+            "before kickoff or production access."
+        )
+    return "No policy reference is available for that topic in this demo."
+
+
+if __name__ == "__main__":
+    mcp.run()