feat: 增强知识库索引与设置页面模块化拆分

扩展知识库索引任务和 RAG 检索支持增量入库和文档去重，优
化本体检测和规则匹配精度，前端设置页面拆分为 LLM、邮件
和 Hermes 员工同步子面板并重构样式，新增日志详情组件和
知识入库日志模型，补充单元测试覆盖。

web/src/views/HermesEmployeeSettingsPanel.vue

@@ -0,0 +1,136 @@
+<template>
+  <div class="hermes-settings-container">
+    <!-- 主控制卡片 -->
+    <section class="settings-card hermes-hero-card" :class="{ active: hermesForm.masterEnabled }">
+      <div class="card-head">
+        <div class="card-title-with-icon">
+          <div class="model-icon-box" :class="{ active: hermesForm.masterEnabled }">
+            <i class="mdi mdi-robot"></i>
+            <span class="status-pulse-dot" :class="{ active: hermesForm.masterEnabled }"></span>
+          </div>
+          <div>
+            <h4>数字员工自动任务主控</h4>
+            <p>开启后系统将自动按计划调度后台数字员工执行知识同步、规则待审、风险扫描及数据统计任务。</p>
+          </div>
+        </div>
+        <div class="card-head-actions">
+          <span class="status-badge" :class="{ active: hermesForm.masterEnabled }">
+            {{ hermesForm.masterEnabled ? '调度服务运行中' : '调度服务已禁用' }}
+          </span>
+          <button
+            class="switch-btn"
+            type="button"
+            :class="{ active: hermesForm.masterEnabled }"
+            aria-label="切换全局自动任务"
+            @click="$emit('toggle-master')"
+          >
+            <i></i>
+          </button>
+        </div>
+      </div>
+    </section>
+
+    <!-- 任务网格控制 -->
+    <section class="settings-card hermes-tasks-section" :class="{ disabled: !hermesForm.masterEnabled }">
+      <div class="card-head">
+        <div class="card-title-with-icon">
+          <div class="model-icon-box">
+            <i class="mdi mdi-clipboard-list-outline"></i>
+          </div>
+          <div>
+            <h4>自动任务项管理</h4>
+            <p>配置并调度具体的后台异步任务，在设定的周期与执行时间定时运行。</p>
+          </div>
+        </div>
+        <div class="card-head-actions">
+          <span class="section-badge">已启用 {{ activeTasksCount }} / {{ HERMES_SIMPLE_TASKS.length }} 项</span>
+        </div>
+      </div>
+
+      <ul class="hermes-task-grid">
+        <li
+          v-for="task in HERMES_SIMPLE_TASKS"
+          :key="task.id"
+          class="hermes-task-card"
+          :class="{ active: isTaskOn(task.id), disabled: !hermesForm.masterEnabled }"
+        >
+          <div class="task-card-header">
+            <div class="task-icon-box" :class="getTaskColorClass(task.id)">
+              <i class="mdi" :class="getTaskIcon(task.id)"></i>
+            </div>
+            <div class="task-meta-info">
+              <strong>{{ task.label }}</strong>
+              <small>{{ task.hint }}</small>
+            </div>
+            <button
+              class="switch-btn mini"
+              type="button"
+              :class="{ active: isTaskOn(task.id) }"
+              :disabled="!hermesForm.masterEnabled"
+              :aria-label="`${isTaskOn(task.id) ? '关闭' : '开启'}${task.label}`"
+              @click="$emit('toggle-task', task.id)"
+            >
+              <i></i>
+            </button>
+          </div>
+
+          <div class="task-card-footer">
+            <div class="frequency-badge" :class="{ active: isTaskOn(task.id) }">
+              <i class="mdi mdi-clock-outline"></i>
+              <span>{{ task.frequencyLabel }}</span>
+            </div>
+            <div v-if="isTaskOn(task.id)" class="time-picker-wrapper">
+              <input
+                :value="taskTime(task.id)"
+                type="time"
+                :disabled="!hermesForm.masterEnabled"
+                aria-label="设置执行时间"
+                @input="$emit('update-task-time', { taskId: task.id, time: $event.target.value })"
+              />
+            </div>
+            <div v-else class="time-picker-placeholder">
+              <span>未开启</span>
+            </div>
+          </div>
+        </li>
+      </ul>
+    </section>
+
+    <!-- 额外设置 (任务告警通知) -->
+    <section class="settings-card hermes-extra-settings">
+      <div class="card-head">
+        <div class="card-title-with-icon">
+          <div class="model-icon-box">
+            <i class="mdi mdi-bell-ring-outline"></i>
+          </div>
+          <div>
+            <h4>任务告警通知</h4>
+            <p>配置自动任务运行出现故障、限频或执行失败时的管理员实时提醒通知渠道。</p>
+          </div>
+        </div>
+      </div>
+
+      <div class="switch-group">
+        <button
+          class="switch-row"
+          type="button"
+          :class="{ active: hermesForm.notifyOnFailure }"
+          aria-label="切换邮件通知"
+          @click="$emit('toggle-flag', 'notifyOnFailure')"
+        >
+          <span class="switch-copy">
+            <strong>任务失败时发送邮件通知管理员</strong>
+            <small>仅在自动任务执行出现故障或异常时触发告警，保障后台服务的高可用性。</small>
+          </span>
+          <span class="switch-btn" :class="{ active: hermesForm.notifyOnFailure }"><i></i></span>
+        </button>
+      </div>
+    </section>
+  </div>
+</template>
+
+<script src="./scripts/HermesEmployeeSettingsPanel.js"></script>
+
+<style scoped src="../assets/styles/views/settings-view-form.css"></style>
+<style scoped src="../assets/styles/views/settings-view.css"></style>
+<style scoped src="../assets/styles/views/settings-view-hermes.css"></style>