fix: 完善分布式调度恢复与批量触发

- 持久化 Quartz refire 状态并收口运行时启动关闭顺序

- 增加批量 Trigger 获取配置、校验与回归测试

easy-agents-scheduler/easy-agents-scheduler-core/src/main/java/com/easyagents/scheduler/ScheduleRefireException.java

@@ -0,0 +1,53 @@
+package com.easyagents.scheduler;
+
+import java.time.Duration;
+
+/**
+ * 请求调度提供方持久化重试同一次逻辑触发的异常。
+ *
+ * <p>仅用于尚未产生业务副作用、且调用方必须保证至少一次登记的短 Handler。
+ * {@code maxRefires=0} 表示不限制持久化重试次数；Provider 正常情况下应释放当前执行线程，
+ * 并通过持久化的延迟触发保留原 fire 上下文。仅当 JobStore 无法写入持久重试时，
+ * Provider 可按相同退避暂时占用当前线程并原地重试，以避免正常完成造成 fire 丢失。</p>
+ */
+public class ScheduleRefireException extends RuntimeException {
+
+    private static final int DEFAULT_MAX_REFIRES = 0;
+    private static final Duration DEFAULT_BASE_DELAY = Duration.ofMillis(250);
+    private final int maxRefires;
+    private final Duration baseDelay;
+
+    public ScheduleRefireException(String message, Throwable cause) {
+        this(message, cause, DEFAULT_MAX_REFIRES, DEFAULT_BASE_DELAY);
+    }
+
+    public ScheduleRefireException(String message, Throwable cause,
+                                   int maxRefires, Duration baseDelay) {
+        super(requireMessage(message), cause);
+        if (maxRefires < 0) throw new IllegalArgumentException("maxRefires must not be negative");
+        if (baseDelay == null || baseDelay.isZero() || baseDelay.isNegative()) {
+            throw new IllegalArgumentException("baseDelay must be positive");
+        }
+        this.maxRefires = maxRefires;
+        this.baseDelay = baseDelay;
+    }
+
+    /**
+     * @return 最大重新执行次数，0 表示不限制
+     */
+    public int maxRefires() {
+        return maxRefires;
+    }
+
+    public Duration delayFor(int refireNumber) {
+        int shift = Math.min(4, Math.max(0, refireNumber - 1));
+        return baseDelay.multipliedBy(1L << shift);
+    }
+
+    private static String requireMessage(String message) {
+        if (message == null || message.isBlank()) {
+            throw new IllegalArgumentException("message must not be blank");
+        }
+        return message;
+    }
+}