feat: SSR 问答帖发帖与解决状态切换

compose 支持 question；详情徽章并由作者/管理员切换。

Co-authored-by: Cursor <cursoragent@cursor.com>

templates/compose.tmpl

@@ -16,15 +16,17 @@
       </select>
     </label>
     {{if .IsEdit}}
-    <p class="j13-muted">类型：{{if eq .PostType "poll"}}投票{{else}}普通讨论{{end}}（不可更改）</p>
+    <p class="j13-muted">类型：{{if eq .PostType "poll"}}投票{{else if eq .PostType "question"}}问答{{else}}普通讨论{{end}}（不可更改）</p>
     <input type="hidden" name="post_type" value="{{.PostType}}"/>
     {{else}}
     <label>类型
       <select name="post_type" id="compose-post-type">
-        <option value="normal"{{if ne .PostType "poll"}} selected{{end}}>普通讨论</option>
+        <option value="normal"{{if or (eq .PostType "normal") (eq .PostType "")}} selected{{end}}>普通讨论</option>
+        <option value="question"{{if eq .PostType "question"}} selected{{end}}>问答</option>
         <option value="poll"{{if eq .PostType "poll"}} selected{{end}}>投票</option>
       </select>
     </label>
+    <p class="j13-muted" id="compose-question-hint"{{if ne .PostType "question"}} hidden{{end}}>问答帖无额外字段；解决状态可在帖详情由作者或管理员切换。</p>
     <fieldset class="j13-poll-fields" id="compose-poll-fields"{{if ne .PostType "poll"}} hidden{{end}}>
       <legend>投票设置</legend>
       <label class="j13-check"><input type="checkbox" name="poll_multi" value="1"{{if .PollMulti}} checked{{end}}/> 允许多选</label>
@@ -68,8 +70,12 @@
 (function () {
   var sel = document.getElementById('compose-post-type');
   var box = document.getElementById('compose-poll-fields');
-  if (!sel || !box) return;
-  function sync() { box.hidden = sel.value !== 'poll'; }
+  var qHint = document.getElementById('compose-question-hint');
+  if (!sel) return;
+  function sync() {
+    if (box) box.hidden = sel.value !== 'poll';
+    if (qHint) qHint.hidden = sel.value !== 'question';
+  }
   sel.addEventListener('change', sync);
   sync();
 })();

templates/post/body.tmpl

@@ -14,6 +14,9 @@
       {{if .EditLocked}}<span class="j13-tag">禁编</span>{{end}}
       {{if .CommentsLocked}}<span class="j13-tag">已结贴</span>{{end}}
       {{if .PostTypeLabel}}<span class="j13-tag">{{.PostTypeLabel}}</span>{{end}}
+      {{if .IsQuestion}}
+        {{if .QuestionResolved}}<span class="j13-tag j13-tag--resolved">已解决</span>{{else}}<span class="j13-tag j13-tag--unresolved">未解决</span>{{end}}
+      {{end}}
       {{if .BoardName}}<a class="j13-tag" href="/board/{{.BoardID}}">{{.BoardName}}</a>{{end}}
       {{if .AuthorID}}<a href="/user/{{.AuthorID}}">{{.AuthorName}}</a>{{else}}<span>{{.AuthorName}}</span>{{end}}
       <span>{{.CreatedLabel}}</span>
@@ -21,6 +24,18 @@
     </div>
     {{if .LoggedIn}}
     <div class="j13-post__actions">
+      {{if .CanToggleQuestion}}
+      <form method="post" action="/post/{{.PostID}}/question/resolve" class="j13-inline-form">
+        <input type="hidden" name="_csrf" value="{{.CSRF}}"/>
+        {{if .QuestionResolved}}
+        <input type="hidden" name="resolved" value="0"/>
+        <button type="submit" class="j13-btn-secondary">标为未解决</button>
+        {{else}}
+        <input type="hidden" name="resolved" value="1"/>
+        <button type="submit">标为已解决</button>
+        {{end}}
+      </form>
+      {{end}}
       <form method="post" action="/post/{{.PostID}}/like" class="j13-inline-form">
         <input type="hidden" name="_csrf" value="{{.CSRF}}"/>
         <button type="submit">{{if .Liked}}取消赞{{else}}赞{{end}} ({{.LikeCount}})</button>