feat: overhaul task board and cross-conversation workflows

.trellis/tasks/08-11-failed-insert-card-actions/task.json

@@ -0,0 +1,32 @@
+{
+  "id": "failed-insert-card-actions",
+  "name": "failed-insert-card-actions",
+  "title": "失败插入卡片重试与删除",
+  "description": "为 Codex App 插入失败卡片增加重试与删除，并修复失败消息持久化回滚。",
+  "status": "completed",
+  "dev_type": "bugfix",
+  "scope": "frontend,server,regression",
+  "package": null,
+  "priority": "P2",
+  "creator": "shiyue",
+  "assignee": "shiyue",
+  "createdAt": "2026-08-11",
+  "completedAt": "2026-08-11",
+  "branch": null,
+  "base_branch": "main",
+  "worktree_path": null,
+  "commit": null,
+  "pr_url": null,
+  "subtasks": [],
+  "children": [],
+  "parent": null,
+  "relatedFiles": [
+    "public/app.js",
+    "public/style.css",
+    "server.js",
+    "scripts/regression.js",
+    "scripts/failed-insert-card-unit.js"
+  ],
+  "notes": "未切换 .trellis/.current-task；ccweb 重启因其他运行中对话暂缓。",
+  "meta": {}
+}