refactor(agent): require runtime for consolidation

tests/agent/test_self_model_preset.py

@@ -58,9 +58,12 @@ def test_model_preset_setter_updates_state(tmp_path) -> None:
     assert loop.provider.generation.max_tokens == 4096
     assert loop.provider.generation.reasoning_effort == "low"
     assert not hasattr(loop.subagents, "model")
-    assert loop.consolidator.model == "openai/gpt-4.1"
-    assert loop.consolidator.context_window_tokens == 32_768
-    assert loop.consolidator.max_completion_tokens == 4096
+    assert not hasattr(loop.consolidator, "model")
+    assert not hasattr(loop.consolidator, "context_window_tokens")
+    assert loop.llm_runtime().model == "openai/gpt-4.1"
+    assert loop.llm_runtime().context_window_tokens == 32_768
+    assert not hasattr(loop.consolidator, "max_completion_tokens")
+    assert loop.llm_runtime().generation.max_tokens == 4096
 
 
 def test_model_preset_setter_calls_runtime_model_publisher(tmp_path) -> None:
@@ -110,10 +113,11 @@ def test_model_preset_setter_replaces_provider_from_snapshot(tmp_path) -> None:
     assert not hasattr(loop.runner, "provider")
     assert not hasattr(loop.subagents, "provider")
     assert not hasattr(loop.subagents.runner, "provider")
-    assert loop.consolidator.provider is new_provider
+    assert not hasattr(loop.consolidator, "provider")
     assert loop.model == "anthropic/claude-opus-4-5"
     assert loop.context_window_tokens == 200_000
-    assert loop.consolidator.max_completion_tokens == 2048
+    assert not hasattr(loop.consolidator, "max_completion_tokens")
+    assert loop.llm_runtime().generation.max_tokens == 2048
 
 
 def test_model_preset_setter_failure_leaves_old_state(tmp_path) -> None:
@@ -136,9 +140,10 @@ def test_model_preset_setter_failure_leaves_old_state(tmp_path) -> None:
     assert loop.model_preset is None
     assert loop.model == "base-model"
     assert not hasattr(loop.subagents, "model")
-    assert loop.consolidator.model == "base-model"
+    assert not hasattr(loop.consolidator, "model")
     assert loop.context_window_tokens == 1000
-    assert loop.consolidator.max_completion_tokens == 123
+    assert not hasattr(loop.consolidator, "max_completion_tokens")
+    assert loop.llm_runtime().generation.max_tokens == 123
 
 
 def test_active_model_preset_survives_unchanged_config_refresh(tmp_path) -> None: