HEL-222: 整合自动提醒引擎(212b1f9)到现行测试版 d6f39e0

- 迁移链追加 0009_reminders_engine：旧 manual reminders 表改名
  reminders_legacy_manual 保留历史，新建 reminders/reminder_events/
  reminder_settings（append-only 触发器）
- server.py：新提醒 API（pending/scan/send/manual/resend/settings/
  公司端收件与状态流转）替换旧 manual-send 端点
- web：admin 待提醒清单+扫描+详情抽屉，公司端通知动态化+
  去处理事件委托；设置保存同步提醒扫描参数
- 移除被取代的 settings.pending_items/send_reminders 与旧 UI 逻辑
- 全量测试 346 项通过（5 项浏览器跳过与历史一致）

Co-authored-by: multica-agent <github@multica.ai>

web/admin.html

@@ -633,6 +633,22 @@
                 <h1>提醒管理</h1>
                 <p class="page-sub">向成员公司发送处理提醒，并跟踪系统提醒与人工提醒的触达与处理状态。</p>
               </div>
+              <div class="page-actions">
+                <button type="button" class="btn btn-sm" id="reminder-scan-btn">立即扫描</button>
+              </div>
+            </div>
+
+            <div class="card" id="pending-reminders-card" style="margin-bottom: 16px;">
+              <div class="card-head">
+                <span class="card-title">待提醒清单<span class="sub">系统按流水提交、断档、待确认自动发现，点发送即送达对应公司</span></span>
+                <div class="row" style="gap: 10px; align-items: center;">
+                  <span class="meta" id="pending-summary">—</span>
+                  <button type="button" class="btn btn-primary btn-sm" id="pending-send-all" disabled>全部一键发送</button>
+                </div>
+              </div>
+              <div id="pending-list">
+                <div class="empty" id="pending-empty">暂无需要提醒的事项 · 各公司流水与确认进度正常</div>
+              </div>
             </div>
 
             <div class="grid grid-1-2">
@@ -642,18 +658,30 @@
                 </div>
                 <form id="reminderForm" novalidate>
                   <div class="field" style="margin-bottom: 14px;">
-                    <label for="reminder-company">接收公司</label>
-                    <select class="select" id="reminder-company"><option value="">请选择公司</option></select>
-                    <span class="hint error" id="company-error" style="display: none;">请选择一家接收公司</span>
+                    <label>接收公司（可多选）</label>
+                    <div class="row" id="reminderCompanyList" style="flex-wrap: wrap; gap: 8px 16px;"></div>
+                    <span class="hint error" id="company-error" style="display: none;">请至少选择一家接收公司</span>
                   </div>
-                  <div class="field" style="margin-bottom: 16px;">
-                    <label>待提醒事项（系统自动列出）</label>
-                    <div id="reminder-items">
-                      <div class="empty">请先选择公司，系统将自动列出该公司待提醒事项。</div>
-                    </div>
-                    <span class="hint error" id="reminder-error" style="display: none;">该公司当前没有待提醒事项</span>
+                  <div class="field" style="margin-bottom: 14px;">
+                    <label for="reminder-type">提醒类型</label>
+                    <select class="select" id="reminder-type">
+                      <option selected>流水未提交</option>
+                      <option>单边待确认</option>
+                      <option>科目待确认</option>
+                      <option>账户登记</option>
+                      <option>其他</option>
+                    </select>
                   </div>
-                  <button type="submit" class="btn btn-primary" id="send-btn" style="width: 100%;" disabled>发送提醒</button>
+                  <div class="field" style="margin-bottom: 14px;">
+                    <label for="reminder-content">提醒内容</label>
+                    <textarea class="textarea" id="reminder-content">请于截止日期前完成 2026 年 7 月银行流水上传与待确认事项处理。</textarea>
+                    <span class="hint error" id="content-error" style="display: none;">提醒内容不能为空</span>
+                  </div>
+                  <div class="field" style="margin-bottom: 18px;">
+                    <label for="reminder-deadline">截止日期</label>
+                    <input class="input" type="date" id="reminder-deadline" value="2026-08-29" min="2026-08-20" />
+                  </div>
+                  <button type="submit" class="btn btn-primary" id="send-btn" style="width: 100%;">发送提醒</button>
                   <p class="hint" id="send-hint" style="margin-top: 10px; display: none;"></p>
                 </form>
               </div>
@@ -672,6 +700,7 @@
                     <thead>
                       <tr>
                         <th>公司</th>
+                        <th>来源</th>
                         <th>类型</th>
                         <th class="wrap">内容摘要</th>
                         <th>发送时间</th>
@@ -947,6 +976,26 @@
       </div>
     </div>
 
+    <!-- 提醒详情抽屉 -->
+    <aside class="drawer" id="reminder-detail-drawer" aria-label="提醒详情">
+      <div class="drawer-head">
+        <div>
+          <span class="pill pill-info" id="rd-source-pill">系统</span>
+          <h2 class="d-title" id="rd-title">提醒详情</h2>
+          <p class="d-desc" id="rd-sub"></p>
+        </div>
+        <button type="button" class="icon-button" data-close-rd aria-label="关闭详情" title="关闭详情">×</button>
+      </div>
+      <div class="drawer-body">
+        <dl class="kv" id="rd-fields"></dl>
+        <h3 style="font-size: 13px; margin: 16px 0 8px; color: var(--muted);">事件留痕</h3>
+        <div id="rd-events"></div>
+      </div>
+      <div class="drawer-foot">
+        <button type="button" class="btn" data-close-rd>关闭</button>
+      </div>
+    </aside>
+
     <!-- 提醒历史弹窗 -->
     <div class="modal-backdrop" id="history-modal">
       <div class="modal">