feat: expand and secure mentor library

static/index.html

@@ -805,14 +805,39 @@
       <div id="mentorNotice" class="inline-notice" hidden></div>
       <div class="mentor-layout">
         <aside class="mentor-sidebar">
-          <div class="workspace-heading"><h3>思维模型</h3><span id="mentorCount">0 位</span></div>
-          <div id="mentorList" class="mentor-list"></div>
+          <button id="mentorDirectoryToggle" class="mentor-directory-toggle" type="button" aria-expanded="false" aria-controls="mentorDirectoryContent">
+            <span><i data-lucide="users-round"></i><span><small>当前思维模型</small><strong id="mobileActiveMentorName">--</strong></span></span>
+            <i data-lucide="chevron-up"></i>
+          </button>
+          <div id="mentorDirectoryBackdrop" class="mentor-directory-backdrop" hidden></div>
+          <div id="mentorDirectoryContent" class="mentor-directory-content">
+            <div class="workspace-heading mentor-directory-heading">
+              <div><h3>思维模型</h3><span id="mentorCount">0 位</span></div>
+              <button id="closeMentorDirectory" class="icon-button mentor-directory-close" type="button" aria-label="关闭思维模型目录" title="关闭"><i data-lucide="x"></i></button>
+            </div>
+            <label class="mentor-search-field">
+              <span class="visually-hidden">搜索思维模型</span>
+              <i data-lucide="search"></i>
+              <input id="mentorSearchInput" type="search" maxlength="50" placeholder="搜索姓名、模式或标签" autocomplete="off">
+            </label>
+            <div class="mentor-evidence-filters" role="group" aria-label="按素材等级筛选">
+              <button class="active" type="button" data-mentor-grade="all">全部</button>
+              <button type="button" data-mentor-grade="A">A 原始</button>
+              <button type="button" data-mentor-grade="B">B 多源</button>
+              <button type="button" data-mentor-grade="C">C 推演</button>
+            </div>
+            <div id="mentorList" class="mentor-list"></div>
+            <div id="mentorListEmpty" class="mentor-list-empty" hidden>没有符合条件的思维模型</div>
+            <p class="mentor-evidence-legend">素材等级反映蒸馏依据，不代表人物能力或收益水平。</p>
+          </div>
         </aside>
         <section class="mentor-chat-panel">
           <header class="mentor-chat-header">
-            <div>
+            <div class="mentor-active-profile">
               <span class="metric-label">当前问师</span>
-              <h3 id="activeMentorName">--</h3>
+              <div class="mentor-active-title"><h3 id="activeMentorName">--</h3><span id="activeMentorBadges" class="mentor-active-badges"></span></div>
+              <p id="activeMentorEvidence">--</p>
+              <div id="activeMentorFocus" class="mentor-active-focus"></div>
             </div>
           </header>
           <div id="mentorMessages" class="mentor-messages" aria-live="polite"></div>