fix: move page ai launcher to pi lab

scripts/desktop-hot.js

@@ -6,7 +6,7 @@
  * - ENABLE_BACKEND：设为 "1" or "true" 时启用默认 FastAPI 后端
  * - BACKEND_CMD：覆盖 FastAPI 启动命令；设置后即视为显式启用后端
  * - SKIP_BACKEND：设为 "1" or "true" 可强制跳过 FastAPI 后端
- * - ENABLE_OPENCODE：设为 "1" or "true" 时启用 opencode serve
+ * - ENABLE_OPENCODE：设为 "1" or "true" 时启用 opencode serve；默认不启动
  * - OPENCODE_CMD：覆盖 opencode 启动命令；设置后即视为显式启用 opencode
  * - SKIP_OPENCODE：设为 "1" or "true" 可强制跳过 opencode
  * - MNOTE_OPENCODE_XDG_ROOT / MNOTE_OPENCODE_HOME：opencode 专用运行目录
@@ -128,7 +128,7 @@ function shouldStartBackend(env = process.env) {
 function shouldStartOpencode(env = process.env) {
   if (isEnabledEnv(env.SKIP_OPENCODE)) return false;
   if (String(env.OPENCODE_CMD || "").trim()) return true;
-  return true;
+  return isEnabledEnv(env.ENABLE_OPENCODE);
 }
 
 function resolveRuntimePlan(env = process.env) {
@@ -757,6 +757,7 @@ module.exports = {
   resolveBackendExecutable,
   schedulePiLabWarmup,
   shouldStartBackend,
+  shouldStartOpencode,
   stopStaleMnoteWebCargoProcesses,
   terminatePid,
 };