test(工作区): 隐式 next 冲突广告用例改为 needs_repair

Create a line without publishing origin so implicit JSON next hits
repair commands and asserts those fields, not a false-green ready
or needs_line path.

Co-authored-by: Dandre Yang <Dandre126@users.noreply.github.com>

Author: cursoragent

tests/test_hub.py

@@ -1644,7 +1644,7 @@ def test_workspace_remove_exact_names_work_under_collision(self) -> None:
         self.assertEqual(load_registry().workspaces, ())
 
     def test_implicit_json_next_does_not_advertise_colliding_alias(self) -> None:
-        self._create_line()
+        create_line(load(self.root), line_id="alpha", branch="feat/alpha", base="main")
         (self.root / "dyro.toml").write_text(
             (self.root / "dyro.toml")
             .read_text(encoding="utf-8")