fix: ElementTree deprecation warning in XML parser (v0.2.1)

- Replace `or` with explicit `is not None` check in _find()
- Fixes DeprecationWarning on Python 3.12+ ElementTree truth testing
- Bump version 0.2.0 → 0.2.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: KI7MT

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "qrz-mcp"
-version = "0.2.0"
+version = "0.2.1"
 description = "MCP server for QRZ.com — callsign lookup, DXCC resolution, logbook queries"
 readme = "README.md"
 license = {text = "GPL-3.0-or-later"}

src/qrz_mcp/xml_client.py

@@ -19,7 +19,10 @@
 
 def _find(root: ET.Element, tag: str) -> ET.Element | None:
     """Find child element, trying with and without QRZ namespace."""
-    return root.find(f"{{{_NS}}}{tag}") or root.find(tag)
+    elem = root.find(f"{{{_NS}}}{tag}")
+    if elem is not None:
+        return elem
+    return root.find(tag)
 
 
 def _findtext(node: ET.Element, tag: str) -> str: