config: force composer-2.5 as default model for heavy-coder profile

Author: codegraphtheory

config.yaml

@@ -1,6 +1,6 @@
 model:
   provider: xai-oauth
-  default: grok-4.3
+  default: composer-2.5
 agent:
   max_turns: 120
   tool_use_enforcement: true
@@ -23,7 +23,7 @@ delegation:
   max_concurrent_children: 5
   max_spawn_depth: 1
 heavy_coder:
-  status: scaffolded
+  status: ready
   candidate_widths: [3, 5]
   default_width: 3
   team_enforced: true
@@ -40,7 +40,7 @@ heavy_coder:
     merged: hermes:merged
   model_roles:
     candidate: composer-2.5
-    coordinator: grok-4.3
-    critic: grok-4.3
-    synthesizer: grok-4.3
-    verifier: grok-4.3
+    coordinator: composer-2.5
+    critic: composer-2.5
+    synthesizer: composer-2.5
+    verifier: composer-2.5