feat: professionalize control plane and standalone delivery

src/biliup_next/app/dashboard.py

@@ -215,7 +215,6 @@ def render_dashboard_html() -> str:
                 </select>
                 <select id="taskDeliveryFilter">
                   <option value="">全部交付状态</option>
-                  <option value="legacy_untracked">主视频评论未追踪</option>
                   <option value="pending_comment">评论待完成</option>
                   <option value="cleanup_removed">已清理视频</option>
                 </select>
@@ -249,6 +248,17 @@ def render_dashboard_html() -> str:
                 </div>
               </section>
 
+              <section class="panel">
+                <div class="panel-head">
+                  <h3>Session Workspace</h3>
+                  <div class="button-row">
+                    <button id="refreshSessionBtn" class="secondary compact">刷新 Session</button>
+                  </div>
+                </div>
+                <div id="sessionWorkspaceState" class="task-workspace-state show">当前任务如果已绑定 session_key，这里会显示同场片段和完整版绑定信息。</div>
+                <div id="sessionPanel" class="summary-card session-panel"></div>
+              </section>
+
               <div class="panel-grid two-up">
                 <section class="panel">
                   <div class="panel-head"><h3>Steps</h3></div>