Use Aider model edit defaults

src/lai_automation/agent.py

@@ -83,8 +83,6 @@ class AiderAgent:
             "--input-history-file",
             "/dev/null",
             "--no-analytics",
-            "--edit-format",
-            "udiff",
             "--timeout",
             "180",
         ]
@@ -96,7 +94,5 @@ class AiderAgent:
                 "--architect",
                 "--editor-model",
                 self.settings.agent_model,
-                "--editor-edit-format",
-                "udiff",
             ])
         return command

tests/test_agent.py

@@ -12,7 +12,8 @@ def test_aider_command_cannot_mutate_git_configuration_or_send_analytics() -> No
     assert "--no-analytics" in command
     assert "--no-auto-commits" in command
     assert command.count("/dev/null") == 2
-    assert command[-4:] == ["--edit-format", "udiff", "--timeout", "180"]
+    assert "--edit-format" not in command
+    assert command[-2:] == ["--timeout", "180"]
 
 
 def test_aider_command_adds_existing_routed_files(tmp_path) -> None:
@@ -33,7 +34,7 @@ def test_aider_command_adds_existing_routed_files(tmp_path) -> None:
     assert "missing.php" not in command
     assert "--architect" in command
     assert command[command.index("--editor-model") + 1] == "mistral/test"
-    assert command[command.index("--editor-edit-format") + 1] == "udiff"
+    assert "--editor-edit-format" not in command
 
 
 def test_unrouted_aider_command_stays_in_direct_edit_mode() -> None: