feat: 添加 getHumanTypingDelay 和 sleep 函数以增强文本输入模拟

Author: CeeVeeX

src/utils.ts

@@ -0,0 +1,37 @@
+export function getHumanTypingDelay(index: number, text: string) {
+  const char = text[index]
+
+  // ===== 1. 基础速度（约 90–150 ms）=====
+  let delay = 90 + Math.random() * 60
+
+  // ===== 2. 索引相关：开头慢，中段快，结尾慢 =====
+  const progress = index / text.length
+
+  if (progress < 0.15) {
+    delay *= 1.3 // 起手慢
+  }
+  else if (progress > 0.85) {
+    delay *= 1.25 // 收尾慢
+  }
+
+  // ===== 3. 字符类型权重 =====
+  if (char === ' ') {
+    delay += 40
+  }
+
+  if (/[,.!?;:]/.test(char)) {
+    delay += 200 + Math.random() * 150
+  }
+
+  // ===== 4. 小概率“走神”停顿 =====
+  if (Math.random() < 0.03) {
+    delay += 300 + Math.random() * 500
+  }
+
+  // ===== 5. 下限保护 =====
+  return Math.max(40, Math.round(delay))
+}
+
+export async function sleep(ms: number) {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}