feat: surface codex runtime status

tests/fixtures/codex-app-server-runtime.mjs

@@ -467,6 +467,59 @@ rl.on("line", (line) => {
         },
       });
     }
+    if (process.env.BOSS_CODEX_APP_SERVER_FIXTURE_EMIT_RUNTIME_STATUS === "1") {
+      send({
+        method: "model/rerouted",
+        params: {
+          threadId: message.params?.threadId,
+          turnId: "turn-fixture",
+          fromModel: "gpt-5.4-mini",
+          toModel: "gpt-5.4",
+          reason: "highRiskCyberActivity",
+        },
+      });
+      send({
+        method: "thread/tokenUsage/updated",
+        params: {
+          threadId: message.params?.threadId,
+          turnId: "turn-fixture",
+          tokenUsage: {
+            total: {
+              totalTokens: 3000,
+              inputTokens: 2200,
+              cachedInputTokens: 300,
+              outputTokens: 650,
+              reasoningOutputTokens: 150,
+            },
+            last: {
+              totalTokens: 800,
+              inputTokens: 500,
+              cachedInputTokens: 120,
+              outputTokens: 260,
+              reasoningOutputTokens: 40,
+            },
+            modelContextWindow: 200000,
+          },
+        },
+      });
+      send({
+        method: "mcpServer/startupStatus/updated",
+        params: {
+          name: "github",
+          status: "failed",
+          error: "token=sk-secret-should-not-leak failed to start",
+        },
+      });
+      send({
+        method: "remoteControl/status/changed",
+        params: {
+          status: "connected",
+          serverName: "Mac Studio",
+          installationId: "install-secret-should-not-leak",
+          environmentId: "env-prod",
+        },
+      });
+    }
     send({
       method: "item/agentMessage/delta",
       params: {