fix: move imports to top-level to resolve linting errors

- Move belief_module import to top of test_architectural_constraints.py
- Move BeliefUpdate import to top of test_game_coordination.py
- Resolve PLC0415 linting errors from CI pipeline

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

tests/test_architectural_constraints.py

@@ -11,6 +11,7 @@ import inspect
 
 import pytest
 
+import domains.belief.belief_domain as belief_module
 from domains.belief.belief_domain import BayesianBeliefState, BeliefUpdate
 from domains.coordination.game_coordination import BayesianGame
 from domains.environment.environment_domain import EnvironmentEvidence
@@ -109,8 +110,6 @@ class TestArchitecturalConstraints:
 
     def test_domain_import_isolation(self):
         """Test that belief domain doesn't import environment domain."""
-        import domains.belief.belief_domain as belief_module
-
         # Get all imports in the belief domain module
         belief_source = inspect.getsource(belief_module)
 

tests/test_game_coordination.py

@@ -1,5 +1,6 @@
 import pytest
 
+from domains.belief.belief_domain import BeliefUpdate
 from domains.coordination.game_coordination import BayesianGame, GamePhase, GameState
 from domains.environment.environment_domain import EnvironmentEvidence
 
@@ -309,8 +310,6 @@ class TestBayesianGame:
         game.start_new_game(target_value=3)
 
         # Apply evidence that changes beliefs
-        from domains.belief.belief_domain import BeliefUpdate
-
         update = BeliefUpdate(comparison_results=["higher"])
         game.belief_state.update_beliefs(update)