DEVX-91: refactor: add find_task_by_identifier, config fallbacks for tools

tests/unit/test_configure_repo.py

@@ -145,6 +145,7 @@ class TestMain:
         assert "CI_GITEA_TOKEN" in result.output
 
     @patch.dict("os.environ", {"CI_GITEA_TOKEN": "tok"}, clear=True)
+    @patch("devx.tools.configure_repo.REPO_NAME", "")
     def test_main_no_repo(self) -> None:
         runner = CliRunner()
         result = runner.invoke(main, [])
@@ -197,3 +198,19 @@ class TestMain:
         call_args = mock_client_cls.call_args
         assert call_args[0][2] == "oblachno"  # owner
         assert call_args[0][3] == "infra"  # repo
+
+    @patch.dict("os.environ", {"CI_GITEA_TOKEN": "tok"}, clear=True)
+    @patch("devx.tools.configure_repo.REPO_NAME", "devx")
+    @patch("devx.tools.configure_repo.REPO_OWNER", "oblachno-oss")
+    @patch("devx.tools.configure_repo.GiteaClient")
+    def test_main_repo_from_pyproject(self, mock_client_cls: MagicMock) -> None:
+        """When no env var is set, repo name should come from pyproject.toml."""
+        mock_client = MagicMock()
+        mock_client_cls.return_value = mock_client
+
+        runner = CliRunner()
+        result = runner.invoke(main, [])
+        assert result.exit_code == 0
+        call_args = mock_client_cls.call_args
+        assert call_args[0][2] == "oblachno-oss"  # owner
+        assert call_args[0][3] == "devx"  # repo