feat(ena-planner): make preserved response tags configurable with UI validation

modules/ena-planner/ena-planner.html

@@ -256,6 +256,11 @@
 
         <section class="card">
           <div class="card-title">聊天与历史</div>
+          <div class="form-group">
+            <label class="form-label">保留的规划输出标签（逗号分隔）</label>
+            <input id="ep_keep_tags" type="text" class="input" placeholder="plot, note">
+            <p class="form-hint">仅支持英文标签（如 plot, note, memory）。留空表示不按标签过滤（仅去除 think）。无效标签会自动忽略。</p>
+          </div>
           <div class="form-group">
             <label class="form-label">清理 AI 回复中的干扰标签（逗号分隔）</label>
             <input id="ep_exclude_tags" type="text" class="input"
@@ -461,6 +466,16 @@
     function csvToArr(text) {
       return String(text || '').split(/[,，]/).map(x => x.trim()).filter(Boolean);
     }
+    function normalizeKeepTagsInput(text) {
+      const src = csvToArr(text);
+      const out = [];
+      src.forEach(item => {
+        const tag = String(item || '').replace(/^<+|>+$/g, '').toLowerCase();
+        if (!/^[a-z][a-z0-9_-]*$/.test(tag)) return;
+        if (!out.includes(tag)) out.push(tag);
+      });
+      return out;
+    }
 
     function escapeHtml(str) {
       return String(str || '').replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
@@ -669,6 +684,7 @@
       $('ep_wb_pos4').value = String(toBool(cfg.excludeWorldbookPosition4, true));
       $('ep_wb_exclude_names').value = arrToCsv(cfg.worldbookExcludeNames);
       $('ep_plot_n').value = String(toNum(cfg.plotCount, 2));
+      $('ep_keep_tags').value = arrToCsv(cfg.responseKeepTags || ['plot', 'note']);
       $('ep_exclude_tags').value = arrToCsv(cfg.chatExcludeTags);
 
       $('ep_logs_persist').value = String(toBool(cfg.logsPersist, true));
@@ -708,6 +724,7 @@
       p.excludeWorldbookPosition4 = toBool($('ep_wb_pos4').value, true);
       p.worldbookExcludeNames = csvToArr($('ep_wb_exclude_names').value);
       p.plotCount = Math.max(0, Math.floor(toNum($('ep_plot_n').value, 2)));
+      p.responseKeepTags = normalizeKeepTagsInput($('ep_keep_tags').value);
       p.chatExcludeTags = csvToArr($('ep_exclude_tags').value);
 
       p.logsPersist = toBool($('ep_logs_persist').value, true);
@@ -761,6 +778,10 @@
         const val = $('ep_model_select').value;
         if (val) { $('ep_model').value = val; scheduleSave(); }
       });
+      $('ep_keep_tags').addEventListener('change', () => {
+        const normalized = normalizeKeepTagsInput($('ep_keep_tags').value);
+        $('ep_keep_tags').value = normalized.join(', ');
+      });
 
       $('ep_add_prompt').addEventListener('click', () => {
         cfg.promptBlocks = cfg.promptBlocks || [];