计划任务编辑详情前后端适配

src/main/java/quant/rich/emoney/util/ChunkRandomIter.java

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+package quant.rich.emoney.util;
+import java.util.*;
+
+public class ChunkRandomIter {
+    
+    final static Random RANDOM = new Random();
+
+    public static <T> List<T> splitShuffleAndFlatten(List<T> list, int n) {
+        int size = list.size();
+        if (n <= 0) throw new IllegalArgumentException("n must be > 0");
+        n = Math.min(n, size == 0 ? 1 : size);
+
+        List<T> parts = new ArrayList<>(n);
+
+        int base = size / n;      // 每份至少 base 个
+        int extra = size % n;     // 前 extra 份多一个
+
+        int idx = 0;
+        for (int i = 0; i < n; i++) {
+            int partSize = base + (i < extra ? 1 : 0);
+            List<T> part = new ArrayList<>(list.subList(idx, idx + partSize));
+            Collections.shuffle(part, RANDOM);
+            parts.addAll(part);
+            idx += partSize;
+        }
+        return parts;
+    }
+}