fix: probe codex forwarder via loopback exec

deploy/k8s/base/workloads.yaml

@@ -279,16 +279,24 @@
                   }
                 ],
                 "readinessProbe": {
-                  "httpGet": {
+                  "exec": {
-                    "path": "/health/readiness",
+                    "command": [
-                    "port": "codex-api"
+                      "node",
-                  }
+                      "-e",
+                      "fetch('http://127.0.0.1:49280/health/readiness').then((response) => process.exit(response.ok ? 0 : 1)).catch(() => process.exit(1))"
+                    ]
+                  },
+                  "timeoutSeconds": 2
                 },
                 "livenessProbe": {
-                  "httpGet": {
+                  "exec": {
-                    "path": "/health/live",
+                    "command": [
-                    "port": "codex-api"
+                      "node",
-                  }
+                      "-e",
+                      "fetch('http://127.0.0.1:49280/health/live').then((response) => process.exit(response.ok ? 0 : 1)).catch(() => process.exit(1))"
+                    ]
+                  },
+                  "timeoutSeconds": 2
                 }
               }
             ],