Extend bounded syntax repair retries

src/lai_automation/config.py

@@ -105,5 +105,5 @@ class Settings:
             raise ValueError("FAILURE_DB_PASSWORD is required")
         if not self.test_database_password:
             raise ValueError("TEST_DB_PASSWORD is required")
-        if not 1 <= self.max_agent_attempts <= 3:
-            raise ValueError("MAX_AGENT_ATTEMPTS must be between 1 and 3")
+        if not 1 <= self.max_agent_attempts <= 5:
+            raise ValueError("MAX_AGENT_ATTEMPTS must be between 1 and 5")

src/lai_automation/worker.py

@@ -133,7 +133,9 @@ class AutomationWorker:
                         RuntimeError(
                             f"{exception}\n{restored_state} Make smaller edits and run php -l on each "
                             "changed PHP file. Reconstruct the intended application fix from this discarded "
-                            f"patch excerpt, correcting its syntax:\n{discarded_diff}"
+                            "patch excerpt, correcting its syntax. This is a repair-only attempt: preserve the "
+                            "intended behavior, place methods inside their owning class, and do not redesign or "
+                            f"expand the solution:\n{discarded_diff}"
                         ),
                     )
                     continue

tests/test_config.py

@@ -70,4 +70,6 @@ def test_default_commands_initialize_disposable_laravel_schema(monkeypatch) -> N
 
 def test_agent_attempts_are_bounded() -> None:
     with pytest.raises(ValueError, match="MAX_AGENT_ATTEMPTS"):
-        settings(max_agent_attempts=4).validate()
+        settings(max_agent_attempts=6).validate()
+
+    settings(max_agent_attempts=5).validate()

tests/test_worker.py

@@ -169,6 +169,7 @@ def test_php_syntax_failure_discards_attempt_before_full_validation() -> None:
     assert "unexpected token" in worker.agent.run.call_args_list[1].args[1]
     assert "clean repository" in worker.agent.run.call_args_list[1].args[1]
     assert "intended fix" in worker.agent.run.call_args_list[1].args[1]
+    assert "repair-only attempt" in worker.agent.run.call_args_list[1].args[1]
     workspace.restore_checkpoint.assert_called_once_with(None)
     worker._run_tests.assert_called_once()