Migrate auth from adif-mcp to qso-graph-auth

Import PersonaManager from qso_graph_auth.identity instead of
adif_mcp.identity. Depend on qso-graph-auth>=0.1.0 instead of
adif-mcp>=0.9.6.

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

Author: KI7MT

pyproject.toml

@@ -7,7 +7,7 @@ license = {text = "GPL-3.0-or-later"}
 authors = [{name = "Greg Beam, KI7MT"}]
 requires-python = ">=3.11"
 dependencies = [
-    "adif-mcp>=0.9.6",
+    "qso-graph-auth>=0.1.0",
     "fastmcp>=3.0",
 ]
 keywords = [

src/qrz_mcp/server.py

@@ -8,7 +8,7 @@
 
 from fastmcp import FastMCP
 
-from adif_mcp.identity import PersonaManager
+from qso_graph_auth.identity import PersonaManager
 
 from . import __version__
 from .logbook_client import LogbookClient