fix: stabilize sub2api codex pool operations

scripts/src/platform-infra-sub2api-codex/remote.ts

@@ -84,6 +84,8 @@ export async function runRemoteCodexPoolScript(config: UniDeskConfig, mode: Remo
 export function codexPoolModeCommand(mode: RemoteCodexPoolMode): string {
   if (mode === "sync") return "bun scripts/cli.ts platform-infra sub2api codex-pool sync --confirm";
   if (mode === "sentinel-probe") return "bun scripts/cli.ts platform-infra sub2api codex-pool sentinel-probe --account <accountName> --confirm";
+  if (mode === "sentinel-image-status") return "bun scripts/cli.ts platform-infra sub2api codex-pool sentinel-image status";
+  if (mode === "sentinel-image-build") return "bun scripts/cli.ts platform-infra sub2api codex-pool sentinel-image build --confirm";
   return "bun scripts/cli.ts platform-infra sub2api codex-pool validate";
 }
 
@@ -224,15 +226,21 @@ export function sleep(ms: number): Promise<void> {
 export function parseJsonOutput(stdout: string): Record<string, unknown> | null {
   const trimmed = stdout.trim();
   if (trimmed.length === 0) return null;
-  const start = trimmed.indexOf("{");
   const end = trimmed.lastIndexOf("}");
-  if (start === -1 || end === -1 || end <= start) return null;
-  try {
-    const parsed = JSON.parse(trimmed.slice(start, end + 1)) as unknown;
-    return typeof parsed === "object" && parsed !== null && !Array.isArray(parsed) ? parsed as Record<string, unknown> : null;
-  } catch {
-    return null;
+  if (end === -1) return null;
+  const starts = [trimmed.indexOf("{")];
+  for (let index = trimmed.lastIndexOf("\n{"); index !== -1; index = trimmed.lastIndexOf("\n{", index - 1)) {
+    starts.push(index + 1);
   }
+  for (const start of starts.filter((item) => item !== -1 && item < end).sort((left, right) => right - left)) {
+    try {
+      const parsed = JSON.parse(trimmed.slice(start, end + 1)) as unknown;
+      return typeof parsed === "object" && parsed !== null && !Array.isArray(parsed) ? parsed as Record<string, unknown> : null;
+    } catch {
+      continue;
+    }
+  }
+  return null;
 }
 
 export function boolField(value: Record<string, unknown> | null, key: string, defaultValue: boolean): boolean {