wip full delegation

codex-rs/app-server-protocol/schema/json/v2/ThreadStartParams.json

@@ -76,6 +76,34 @@
       ],
       "type": "string"
     },
+    "SdkDelegationConfig": {
+      "properties": {
+        "bridgeUrl": {
+          "description": "Base URL for the host-managed Responses bridge reachable by the Codex runtime.",
+          "type": "string"
+        },
+        "modelProviderId": {
+          "description": "Optional model-provider id to register for this thread. Defaults to `codex-sdk-v2`.",
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "streamIdleTimeoutMs": {
+          "description": "Optional stream idle timeout override for the delegated provider.",
+          "format": "uint64",
+          "minimum": 0.0,
+          "type": [
+            "integer",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "bridgeUrl"
+      ],
+      "type": "object"
+    },
     "ServiceTier": {
       "enum": [
         "fast",