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>

docs/rebuild-spec/02-features.md

@@ -68,7 +68,7 @@
 ### D.1 帖子类型
 
 - [x] `normal` 普通讨论 — SSR compose 默认
-- [ ] `question` 问答：可标记已解决 / 未解决
+- [x] `question` 问答：可标记已解决 / 未解决 — SSR compose + 详情徽章与切换
 - [x] `poll` 投票：2–10 选项；单选/多选；可选截止时间；投票；作者可结束 — SSR compose + 详情卡
 - [ ] `bounty` 悬赏：发帖托管积分；采纳评论发奖；可退款（规则见 05）
 - [ ] `lottery` 抽奖帖：设定中奖人数；从评论参与者开奖

docs/rebuild-spec/06-pages-ux.md

@@ -28,7 +28,7 @@
 | `/board/:id` | 板块 Feed | 已迁 |
 | `/boards` | 板块索引 | 已迁 |
 | `/post/:id` | 帖详情 + 评论（回复/赞/私密）/赞/藏 | 已迁 |
-| `/compose` | 发帖（normal / poll；textarea + 图片 + 门控插入） | 已迁 |
+| `/compose` | 发帖（normal / question / poll；textarea + 图片 + 门控插入） | 已迁 |
 | `/post/:id/edit` | 编辑帖 | 已迁 |
 | `/profile` | 个人中心（资料/密码/头像/积分钱包） | 已迁 |
 | `/user/:id` | 公开用户页 | 已迁 |
@@ -115,7 +115,7 @@
 | 类型 | 附加 UI |
 |------|---------|
 | 讨论 | 无 |
-| 问答 | 无额外字段（解决状态在详情） |
+| 问答 | 无额外字段（解决状态在详情）— SSR compose 可选；详情切换已迁 |
 | 投票 | 选项列表、多选开关、最多可选、截止时间或无截止 |
 | 悬赏 | 积分输入（显示余额） |
 | 抽奖 | 中奖人数 1–20 |
@@ -144,6 +144,7 @@
 | 模块 | 行为 |
 |------|------|
 | 门控块 | 锁定壳 UI（长度/价格/引导）；`POST /post/:id/unlock` 返回 inner HTML 后替换 |
+| 问答状态 | 已解决/未解决徽章；作者或管理员 `POST /post/:id/question/resolve` 切换 — SSR |
 | 投票卡 | 选选项提交；显示百分比；作者可结束 — SSR `/post/:id/poll/vote|close` |
 | 悬赏条 | 显示积分与状态；采纳按钮在他人评论上；退款按钮按规则禁用并提示 |
 | 抽奖卡 | 显示参与人数；开奖；中奖名单 |

public/assets/site.css

@@ -318,6 +318,8 @@ body.j13-body {
   border: 1px solid #fecaca;
 }
 .j13-tag--feat { background: #ede9fe; color: #5b21b6; }
+.j13-tag--resolved { background: #ecfdf5; color: #065f46; }
+.j13-tag--unresolved { background: #f8fafc; color: #475569; }
 
 .j13-empty { color: var(--j13-muted); }
 .j13-pager {

routers/web/compose.go

@@ -67,7 +67,7 @@ func (d Deps) ComposePost(c *gin.Context) {
 	form := composeFormFrom(c)
 	htmlBody := services.ComposeBodyToHTML(form.Content)
 	postType := form.PostType
-	if postType != models.PostTypePoll {
+	if postType != models.PostTypePoll && postType != models.PostTypeQuestion {
 		postType = models.PostTypeNormal
 	}
 	post, err := d.Post.Create(ctx.UserID(), form.BoardID, form.Title, htmlBody, form.Tags, postType, ctx.SkipsModeration())
@@ -197,7 +197,7 @@ func composeFormFrom(c *gin.Context) composeForm {
 		maxChoices = 1
 	}
 	postType := strings.TrimSpace(c.PostForm("post_type"))
-	if postType != models.PostTypePoll {
+	if postType != models.PostTypePoll && postType != models.PostTypeQuestion {
 		postType = models.PostTypeNormal
 	}
 	return composeForm{

routers/web/home.go

@@ -33,6 +33,7 @@ func Register(r *gin.Engine, deps Deps, authMW *auth.AuthMiddleware) {
 	g.POST("/post/:id/favorite", authMW.RequireAuth(), deps.PostFavorite)
 	g.POST("/post/:id/poll/vote", authMW.RequireAuth(), deps.PostPollVote)
 	g.POST("/post/:id/poll/close", authMW.RequireAuth(), deps.PostPollClose)
+	g.POST("/post/:id/question/resolve", authMW.RequireAuth(), deps.PostQuestionResolvePost)
 	g.POST("/post/:id/unlock", authMW.RequireAuth(), deps.PostUnlock)
 	g.POST("/post/:id/report", authMW.RequireAuth(), deps.PostReportPost)
 	g.POST("/post/:id/comments/:cid/report", authMW.RequireAuth(), deps.CommentReportPost)

routers/web/post.go

@@ -46,6 +46,9 @@ type PostPageData struct {
 	Status           string
 	StatusLabel      string
 	ShowModerationBanner bool
+	IsQuestion           bool
+	QuestionResolved     bool
+	CanToggleQuestion    bool
 	Poll                 *postPollView
 }
 
@@ -199,6 +202,9 @@ func (d Deps) PostView(c *gin.Context) {
 		Status:           post.Status,
 		StatusLabel:      statusLabel,
 		ShowModerationBanner: showBanner,
+		IsQuestion:           post.PostType == models.PostTypeQuestion,
+		QuestionResolved:     post.QuestionResolved,
+		CanToggleQuestion:    post.PostType == models.PostTypeQuestion && (ctx.IsAdmin() || post.UserID == ctx.UserID()),
 		Poll:                 pollView,
 	})
 }
@@ -468,6 +474,33 @@ func (d Deps) PostPollClose(c *gin.Context) {
 	ctx.Redirect(fmt.Sprintf("/post/%d", id))
 }
 
+// PostQuestionResolvePost 标记问答帖已解决 / 未解决
+func (d Deps) PostQuestionResolvePost(c *gin.Context) {
+	ctx := d.ctx(c)
+	id, err := parsePostID(c, d)
+	if err != nil || id == 0 {
+		d.render404(ctx)
+		return
+	}
+	if !ctx.CheckCSRF() {
+		ctx.SetFlash("无效请求，请重试")
+		ctx.Redirect(fmt.Sprintf("/post/%d", id))
+		return
+	}
+	resolved := c.PostForm("resolved") == "1" || c.PostForm("resolved") == "on"
+	if err := d.Post.SetQuestionResolved(ctx.UserID(), id, ctx.IsAdmin(), resolved); err != nil {
+		ctx.SetFlash(err.Error())
+		ctx.Redirect(fmt.Sprintf("/post/%d", id))
+		return
+	}
+	if resolved {
+		ctx.SetFlash("已标为已解决")
+	} else {
+		ctx.SetFlash("已标为未解决")
+	}
+	ctx.Redirect(fmt.Sprintf("/post/%d", id))
+}
+
 type commentEditData struct {
 	PageChrome
 	PostID   uint

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>

web_src/css/site.css

@@ -318,6 +318,8 @@ body.j13-body {
   border: 1px solid #fecaca;
 }
 .j13-tag--feat { background: #ede9fe; color: #5b21b6; }
+.j13-tag--resolved { background: #ecfdf5; color: #065f46; }
+.j13-tag--unresolved { background: #f8fafc; color: #475569; }
 
 .j13-empty { color: var(--j13-muted); }
 .j13-pager {