chore: import upstream snapshot with attribution

tests/test_cli/test_init_cmd.py

@@ -0,0 +1,9 @@
+from opensquilla.cli.init_cmd import _default_model_for_provider
+
+
+def test_init_uses_direct_deepseek_model_default() -> None:
+    assert _default_model_for_provider("deepseek") == "deepseek-v4-flash"
+
+
+def test_init_keeps_openrouter_model_default() -> None:
+    assert _default_model_for_provider("openrouter") == "deepseek/deepseek-v4-pro"