feat(V0.2): 打卡 / 日历 / 清单模块

- 数据: Habit/CheckIn/CheckList/CheckListItem/CheckListTemplate + 迁移 + 重新生成 client
- 后端: server/checkin/period.js 周期计算(日/周/月/年, 周一起始, Asia/Shanghai)
        /api/checkin/* 打卡项CRUD/打卡/撤销/补打/某日详情/月历
        /api/checklists/* 清单与检查项CRUD/勾选/全选/复制/模板(系统预置出差·回老家)
- 前端: 底部新增「打卡」Tab -> /checkin, 页内三视图
        环形进度 RingProgress + 完成特效(粒子/光晕/触感, 可关闭)
        打卡视图: 待办列表/乐观更新/撤销/新建编辑
        日历视图: 月历网格 + 今天·昨天·明天 + 日期标记/完成率
        清单视图: 场景清单/勾选进度条/模板生成/另存模板/归档
- 文档: docs/V0.2/需求文档.md 补充实现约定(附录B)与接口清单

src/styles/globals.css

@@ -500,3 +500,171 @@ input, textarea, select { font: inherit; }
   color: #fff;
 }
 .oil-day.future .oil-day-status { color: rgba(255,255,255,.85); }
+
+/* ================== 打卡 / 日历 / 清单 (V0.2) ================== */
+.checkin-content { padding: 0 0 16px; flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; }
+.checkin-content .adm-tabs-content { --content-padding: 0; }
+
+/* ----- 环形进度 ----- */
+.ring-wrap { position: relative; display: inline-flex; flex-shrink: 0; align-items: center; justify-content: center; }
+.ring-wrap.clickable { cursor: pointer; }
+.ring-wrap.disabled { opacity: .5; }
+.ring-svg { display: block; }
+.ring-bar { transition: stroke-dashoffset 0.45s cubic-bezier(0.4, 0, 0.2, 1); }
+.ring-center {
+  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
+  font-size: 13px; font-weight: 600; color: var(--color-text); font-variant-numeric: tabular-nums;
+}
+.ring-num em { font-style: normal; font-size: 10px; color: var(--color-muted); font-weight: 400; }
+.ring-check { animation: ring-check-in 0.32s ease; }
+@keyframes ring-check-in { from { transform: scale(0.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }
+.ring-over {
+  position: absolute; right: -2px; bottom: -2px; font-size: 10px; font-weight: 600;
+  color: #fff; background: #ff8f1f; border-radius: 8px; padding: 0 4px; line-height: 14px;
+}
+
+/* ----- 完成特效 ----- */
+.celebrate { position: absolute; inset: 0; pointer-events: none; z-index: 6; }
+.celebrate i {
+  position: absolute; left: 50%; top: 50%; width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px;
+  border-radius: 50%; animation: burst-fly 0.7s ease-out forwards;
+}
+@keyframes burst-fly {
+  0%   { transform: rotate(var(--a)) translateX(0) scale(1); opacity: 1; }
+  70%  { opacity: 1; }
+  100% { transform: rotate(var(--a)) translateX(var(--d)) scale(0.3); opacity: 0; }
+}
+.celebrate-ring {
+  position: absolute; left: 50%; top: 50%; width: 64px; height: 64px; margin: -32px 0 0 -32px;
+  border-radius: 50%; border: 2px solid var(--color-primary); animation: ring-pulse 0.7s ease-out forwards;
+}
+@keyframes ring-pulse {
+  0%   { transform: scale(0.3); opacity: 0.9; }
+  100% { transform: scale(1.7); opacity: 0; }
+}
+
+/* ----- 打卡视图 ----- */
+.habit-view { padding: 0 12px 20px; }
+.habit-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 8px; padding: 10px 2px; }
+.habit-date { font-size: 18px; font-weight: 700; color: var(--color-text); }
+.habit-summary { font-size: 12px; color: var(--color-muted); margin-top: 2px; }
+.habit-summary strong { color: var(--color-primary); font-size: 14px; }
+.habit-badge { margin-left: 6px; font-size: 11px; color: #ad6800; background: #fff7e6; border-radius: 4px; padding: 1px 5px; }
+.habit-head-right { display: flex; gap: 6px; flex-shrink: 0; }
+.checkin-empty { padding: 48px 0; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 12px; }
+
+.habit-list { display: flex; flex-direction: column; gap: 10px; }
+.habit-card {
+  position: relative; background: #fff; border-radius: 10px; padding: 12px;
+  display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "ring main actions" "foot foot foot";
+  gap: 8px 12px; box-shadow: 0 1px 2px rgba(0,0,0,.04);
+  transition: background 0.2s ease;
+}
+.habit-card:active { background: #fafafa; }
+.habit-card.done { background: #f7fbf8; }
+.habit-card .ring-wrap { grid-area: ring; }
+.habit-main { grid-area: main; min-width: 0; }
+.habit-actions { grid-area: actions; display: flex; align-items: center; }
+.habit-foot {
+  grid-area: foot; display: flex; gap: 14px; padding-top: 8px; border-top: 1px dashed var(--color-border);
+}
+.habit-name { font-size: 15px; font-weight: 600; color: var(--color-text); word-break: break-all; }
+.habit-meta { font-size: 12px; color: var(--color-muted); margin-top: 3px; }
+.habit-streak { margin-left: 8px; color: #ff8f1f; background: rgba(255,143,31,.12); border-radius: 4px; padding: 1px 6px; }
+.habit-note { font-size: 11px; color: var(--color-muted); margin-top: 3px; }
+.habit-range { font-size: 11px; color: var(--color-muted); margin-top: 3px; font-variant-numeric: tabular-nums; }
+.habit-over { margin-left: 8px; color: #ff8f1f; }
+.habit-link { font-size: 12px; color: var(--color-primary); cursor: pointer; }
+.habit-link.danger { color: var(--color-danger); }
+
+/* ----- 日历视图 ----- */
+.calendar-view { padding: 0 12px 20px; }
+.cal-month-bar { display: flex; align-items: center; gap: 10px; padding: 8px 2px; }
+.cal-month { font-size: 16px; font-weight: 700; color: var(--color-text); }
+.cal-arrow { font-size: 20px; color: var(--color-muted); cursor: pointer; padding: 0 4px; line-height: 1; }
+.cal-today-btn { margin-left: auto; font-size: 12px; color: var(--color-primary); cursor: pointer; }
+.cal-quick { padding: 2px 0 10px; }
+.cal-grid { background: #fff; border-radius: 10px; padding: 8px 6px 10px; box-shadow: 0 1px 2px rgba(0,0,0,.04); }
+.cal-weekday, .cal-days { display: grid; grid-template-columns: repeat(7, 1fr); }
+.cal-weekday span { text-align: center; font-size: 11px; color: var(--color-muted); padding: 4px 0; }
+.cal-day {
+  position: relative; height: 38px; display: flex; flex-direction: column; align-items: center;
+  justify-content: center; border-radius: 8px; cursor: pointer;
+}
+.cal-day-num { font-size: 13px; color: var(--color-text); font-variant-numeric: tabular-nums; }
+.cal-day.out .cal-day-num { color: #c8c8c8; }
+.cal-day.future .cal-day-num { color: #b0b0b0; }
+.cal-day.today .cal-day-num { color: var(--color-primary); font-weight: 700; }
+.cal-day.selected { background: var(--color-primary); }
+.cal-day.selected .cal-day-num { color: #fff; font-weight: 600; }
+.cal-dot { width: 5px; height: 5px; border-radius: 50%; margin-top: 3px; }
+.cal-dot.partial { background: #ffc53d; }
+.cal-dot.full { background: #00b578; }
+.cal-dot.over { background: #a855f7; }
+.cal-day.selected .cal-dot { background: #fff; }
+.cal-rate { font-size: 12px; color: var(--color-muted); padding: 8px 2px; }
+.cal-rate strong { color: var(--color-primary); }
+.cal-detail { margin-top: 6px; }
+.cal-detail-title { font-size: 14px; font-weight: 600; color: var(--color-text); padding: 6px 2px 8px; }
+.cal-item {
+  position: relative; display: flex; align-items: center; gap: 8px; background: #fff;
+  border-radius: 8px; padding: 10px 12px; margin-bottom: 8px; box-shadow: 0 1px 2px rgba(0,0,0,.04);
+}
+.cal-item.done { background: #f7fbf8; }
+.cal-item-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
+.cal-item-name { font-size: 14px; font-weight: 600; color: var(--color-text); }
+.cal-item-meta { font-size: 11px; color: var(--color-muted); flex: 1; text-align: right; font-variant-numeric: tabular-nums; }
+.cal-item-right { flex-shrink: 0; }
+.cal-item-plan { font-size: 12px; color: var(--color-muted); }
+
+/* ----- 清单视图 ----- */
+.list-view { padding: 0 12px 20px; }
+.list-view-head { display: flex; align-items: center; gap: 8px; padding: 8px 0 10px; }
+.list-view-head .adm-segmented { flex: 1; }
+.checklist-wrap { display: flex; flex-direction: column; gap: 10px; }
+.checklist-card {
+  position: relative; background: #fff; border-radius: 10px; padding: 12px;
+  box-shadow: 0 1px 2px rgba(0,0,0,.04);
+}
+.checklist-card.done { background: #f7fbf8; }
+.checklist-head { cursor: pointer; }
+.checklist-title-row { display: flex; align-items: center; gap: 8px; }
+.checklist-title { font-size: 15px; font-weight: 600; color: var(--color-text); }
+.checklist-scene { font-size: 11px; color: var(--color-primary); background: #f0f5ff; border-radius: 4px; padding: 1px 6px; }
+.checklist-progress-row { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
+.checklist-bar { flex: 1; height: 6px; border-radius: 3px; background: #f0f0f0; overflow: hidden; }
+.checklist-bar-fill { height: 100%; border-radius: 3px; background: #00b578; transition: width 0.4s ease; }
+.checklist-count { font-size: 12px; color: var(--color-muted); font-variant-numeric: tabular-nums; }
+.checklist-arrow { color: var(--color-muted); transition: transform 0.2s ease; }
+.checklist-arrow.open { transform: rotate(90deg); }
+.checklist-body { margin-top: 10px; padding-top: 8px; border-top: 1px dashed var(--color-border); }
+.checklist-item { display: flex; align-items: center; gap: 8px; padding: 7px 0; }
+.check-box {
+  width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid #d0d0d0; flex-shrink: 0;
+  display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
+  transition: background 0.2s ease, border-color 0.2s ease;
+}
+.check-box svg { opacity: 0; transition: opacity 0.15s ease; }
+.checklist-item.done .check-box { background: #00b578; border-color: #00b578; }
+.checklist-item.done .check-box svg { opacity: 1; }
+.checklist-item-title { flex: 1; font-size: 14px; color: var(--color-text); cursor: pointer; }
+.checklist-item-title em { display: block; font-style: normal; font-size: 11px; color: var(--color-muted); margin-top: 2px; }
+.checklist-item.done .checklist-item-title { color: #a0a0a0; text-decoration: line-through; }
+.checklist-item-del { color: #ccc; font-size: 18px; line-height: 1; padding: 0 4px; cursor: pointer; }
+.checklist-add { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
+.checklist-add .adm-input { flex: 1; border: 1px solid var(--color-border); border-radius: 6px; padding: 6px 8px; }
+.checklist-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }
+
+/* ----- 表单弹窗 (打卡项 / 清单) ----- */
+.form-popup { padding: 16px 16px 8px; }
+.form-title { font-size: 16px; font-weight: 700; color: var(--color-text); margin-bottom: 12px; }
+.form-field { margin-bottom: 14px; }
+.form-field > label { display: block; font-size: 12px; color: var(--color-muted); margin-bottom: 6px; }
+.form-field .adm-input { border: 1px solid var(--color-border); border-radius: 8px; padding: 8px 10px; }
+.form-actions { margin-top: 18px; }
+.color-row { display: flex; gap: 10px; flex-wrap: wrap; }
+.color-dot {
+  width: 26px; height: 26px; border-radius: 50%; cursor: pointer; display: inline-block;
+  border: 2px solid transparent; transition: transform 0.15s ease;
+}
+.color-dot.active { border-color: rgba(0,0,0,.25); transform: scale(1.12); }