fix: prefer installed plugin in doctor checks

Author: douglasmonsky

src/codex_usage_tracker/diagnostics.py

@@ -45,7 +45,7 @@ def run_doctor(
 ) -> dict[str, Any]:
     """Run read-only setup checks and return a structured report."""
 
-    root = repo_root or find_project_root() or _resolve_plugin_root(plugin_link)
+    root = repo_root or _resolve_plugin_root(plugin_link) or find_project_root()
     checks = [
         _check_package_import(),
         _check_codex_sessions(codex_home),

tests/test_plugin_installer.py

@@ -129,5 +129,6 @@ def test_doctor_accepts_generated_plugin_directory(tmp_path: Path) -> None:
     checks = {check["name"]: check for check in report["checks"]}
 
     assert checks["Plugin root"]["status"] == "pass"
+    assert str(plugin_dir) in checks["Plugin root"]["detail"]
     assert checks["Plugin registration"]["status"] == "pass"
     assert checks["MCP config"]["status"] == "pass"