fix(update): serialize InstallMethod enum to string and fix command name

InstallMethod.PIP is a StrEnum — storing it directly in YAML config
raises 'cannot represent an object'. Use .value to store the string.

Also fix 'deepctl update' → 'dg update' in format_version_message
(a second occurrence missed in the earlier rename).

Author: lukeocodes

packages/deepctl-cmd-update/src/deepctl_cmd_update/command.py

@@ -131,8 +131,10 @@ def handle(
         detector = InstallationDetector()
         install_info = detector.detect()
 
-        # Store installation info for future use
-        config._set_config_value("update.installation_method", install_info.method)
+        # Store installation info for future use — serialize enum to its string value
+        config._set_config_value(
+            "update.installation_method", install_info.method.value
+        )
         config._set_config_value("update.installation_path", install_info.path)
         config.save()
 

packages/deepctl-cmd-update/src/deepctl_cmd_update/version_check.py

@@ -270,5 +270,5 @@ def format_version_message(info: VersionInfo) -> str:
         else:
             message += f" (released {days_old} days ago)"
 
-    message += "\nRun 'deepctl update' to upgrade"
+    message += "\nRun 'dg update' to upgrade"
     return message

packages/deepctl-cmd-update/tests/unit/test_version_check.py

@@ -273,4 +273,4 @@ def test_update_available(self):
         msg = format_version_message(info)
         assert "1.0.0" in msg
         assert "2.0.0" in msg
-        assert "deepctl update" in msg
+        assert "dg update" in msg