Add realtime connection mode to app-server protocol

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json

@@ -7404,6 +7404,13 @@
         }
       ]
     },
+    "RealtimeConnection": {
+      "enum": [
+        "text",
+        "audio"
+      ],
+      "type": "string"
+    },
     "RealtimeConversationVersion": {
       "enum": [
         "v1",
@@ -7411,6 +7418,13 @@
       ],
       "type": "string"
     },
+    "RealtimeTranscriptUpdateKind": {
+      "enum": [
+        "delta",
+        "done"
+      ],
+      "type": "string"
+    },
     "RealtimeVoice": {
       "enum": [
         "alloy",
@@ -11811,22 +11825,27 @@
     },
     "ThreadRealtimeTranscriptUpdatedNotification": {
       "$schema": "http://json-schema.org/draft-07/schema#",
-      "description": "EXPERIMENTAL - flat transcript delta emitted whenever realtime transcript text changes.",
+      "description": "EXPERIMENTAL - flat transcript update emitted whenever realtime transcript text changes or completes.",
       "properties": {
         "role": {
           "type": "string"
         },
         "text": {
+          "description": "Delta text for delta updates; final complete text for done updates.",
           "type": "string"
         },
         "threadId": {
           "type": "string"
+        },
+        "updateKind": {
+          "$ref": "#/definitions/RealtimeTranscriptUpdateKind"
         }
       },
       "required": [
         "role",
         "text",
-        "threadId"
+        "threadId",
+        "updateKind"
       ],
       "title": "ThreadRealtimeTranscriptUpdatedNotification",
       "type": "object"