feat: configure role-specific models

resources/models/builtin.toml

@@ -50,6 +50,13 @@ context_window = 1050000
 max_context_window = 272000
 capability = { tool_calling = "parallel", structured_output = "json_schema", reasoning = "effort", vision = true, prompt_caching = { kind = "auto" } }
 
+[[model]]
+id = "gpt-5.6-luna"
+provider = "codex-oauth"
+context_window = 1050000
+max_context_window = 272000
+capability = { tool_calling = "parallel", structured_output = "json_schema", reasoning = "effort", vision = true, prompt_caching = { kind = "auto" } }
+
 [[model]]
 id = "gpt-5.5"
 provider = "codex-oauth"

resources/profiles/base.dcdl

@@ -28,6 +28,8 @@ feature = {
         resident = { inject_summary = true; };
         extraction = {
             enabled = true;
+            model = { ref = "codex-oauth/gpt-5.6-luna"; };
+            reasoning = "medium";
             threshold = 50000;
         };
         consolidation = { request_enabled = true; };

resources/profiles/coder.dcdl

@@ -2,7 +2,11 @@ import "./base.dcdl" // {
     slug = "coder";
     description = "Ticket implementation coder profile.";
     scope = "workspace_write";
-    engine = { instruction = "role.coder"; };
+    model = { ref = "codex-oauth/gpt-5.6-sol"; };
+    engine = {
+        instruction = "role.coder";
+        reasoning = "high";
+    };
 
     feature = {
         task = { enabled = true; };

resources/profiles/companion.dcdl

@@ -2,6 +2,7 @@ import "./base.dcdl" // {
     slug = "companion";
     description = "Workspace companion profile.";
     scope = "workspace_write";
+    model = { ref = "codex-oauth/gpt-6-astra"; };
 
     feature = {
         task = { enabled = true; };

resources/profiles/memory-consolidation.dcdl

@@ -2,6 +2,8 @@ import "./base.dcdl" // {
     slug = "memory-consolidation";
     description = "Memory staging consolidation profile.";
     scope = "workspace_read";
+    model = { ref = "codex-oauth/gpt-5.6-luna"; };
+    engine = { reasoning = "medium"; };
 
     feature = {
         task = { enabled = false; };

resources/profiles/reviewer.dcdl

@@ -2,7 +2,11 @@ import "./base.dcdl" // {
     slug = "reviewer";
     description = "Ticket review profile.";
     scope = "workspace_read";
-    engine = { instruction = "role.reviewer"; };
+    model = { ref = "codex-oauth/gpt-5.6-sol"; };
+    engine = {
+        instruction = "role.reviewer";
+        reasoning = "high";
+    };
 
     feature = {
         task = { enabled = true; };