update docs and perf metrics

inire/tests/test_api.py

@@ -76,6 +76,13 @@ def test_route_problem_supports_configs_and_debug_data() -> None:
     assert run.results_by_net["net1"].reached_target
     assert run.expanded_nodes
     assert run.metrics.nodes_expanded > 0
+    assert run.metrics.route_iterations >= 1
+    assert run.metrics.nets_routed >= 1
+    assert run.metrics.move_cache_abs_misses >= 0
+    assert run.metrics.ray_cast_calls >= 0
+    assert run.metrics.dynamic_tree_rebuilds >= 0
+    assert run.metrics.visibility_builds >= 0
+    assert run.metrics.verify_path_report_calls >= 0
 
 
 def test_route_problem_locked_routes_become_static_obstacles() -> None: