AI Newsletter Digest improvements: fixed QP soft line break decoding, URL extraction, and content cleaning

skills/feishu-evolver-wrapper/utils/sleep.js

@@ -0,0 +1,15 @@
+
+function sleepSync(ms) {
+    if (ms <= 0) return;
+    try {
+        const sab = new SharedArrayBuffer(4);
+        const int32 = new Int32Array(sab);
+        Atomics.wait(int32, 0, 0, ms);
+    } catch (e) {
+        // Fallback for environments without SharedArrayBuffer (rare in Node 22)
+        const end = Date.now() + ms;
+        while (Date.now() < end) {}
+    }
+}
+
+module.exports = { sleepSync };