fix(polish): 上线四缺陷修复——明暗委托/灯箱常开/评论站点名/书评宋体

- 明暗切换：document 级委托（软导航换 DOM 后元素级监听全丢）；
  E2E 再抓一坑：SVGElement 非 HTMLElement 实例，守卫用 Element 基类
- 图库：#lb 无条件 display:flex 覆盖 UA 隐藏 → 灯箱"永远打开"盖全页；
  改 #lb:not([open]) 显式 none；时间戳标题清空；灯箱打磨（切换钮
  实底阴影/n/21 计数器/空标题隐藏/原图链接暗底亮蓝）
- 评论：site 'wait4x'→'wait4x.online' 对齐 Artalk 服务端（404 根因）
- 书评字体：文楷→思源宋（@fontsource 预分片）；文楷降级金句 --font-kai
- 数据：21 张照片组修正 street→landscape（迁移器收到内部组 id 的坑）
- 新增 tests/e2e.mjs：Playwright 30 项全功能 E2E

验证: node tests/e2e.mjs 30/30 PASS（含软导航后明暗切换回归项）

Spec: 2026-10-25_fix-site-polish

Co-authored-by: GLM-5.3

content/photos/1766156983093.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156983093",
+ "title": "",
  "image": "./1766156983093.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156992123.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156992123",
+ "title": "",
  "image": "./1766156992123.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156992265.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156992265",
+ "title": "",
  "image": "./1766156992265.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156992559.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156992559",
+ "title": "",
  "image": "./1766156992559.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156992840.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156992840",
+ "title": "",
  "image": "./1766156992840.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156997939.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156997939",
+ "title": "",
  "image": "./1766156997939.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156998072.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156998072",
+ "title": "",
  "image": "./1766156998072.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156998205.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156998205",
+ "title": "",
  "image": "./1766156998205.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156998344.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156998344",
+ "title": "",
  "image": "./1766156998344.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766156998590.json

@@ -1,7 +1,7 @@
 {
- "title": "1766156998590",
+ "title": "",
  "image": "./1766156998590.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766157003595.json

@@ -1,7 +1,7 @@
 {
- "title": "1766157003595",
+ "title": "",
  "image": "./1766157003595.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766157003732.json

@@ -1,7 +1,7 @@
 {
- "title": "1766157003732",
+ "title": "",
  "image": "./1766157003732.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766157003865.json

@@ -1,7 +1,7 @@
 {
- "title": "1766157003865",
+ "title": "",
  "image": "./1766157003865.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766157003992.json

@@ -1,7 +1,7 @@
 {
- "title": "1766157003992",
+ "title": "",
  "image": "./1766157003992.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766157004116.json

@@ -1,7 +1,7 @@
 {
- "title": "1766157004116",
+ "title": "",
  "image": "./1766157004116.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/1766157012003.json

@@ -1,7 +1,7 @@
 {
- "title": "1766157012003",
+ "title": "",
  "image": "./1766157012003.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/mmexport1771816358254.json

@@ -1,7 +1,7 @@
 {
- "title": "mmexport1771816358254",
+ "title": "",
  "image": "./mmexport1771816358254.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/mmexport1771816377628.json

@@ -1,7 +1,7 @@
 {
- "title": "mmexport1771816377628",
+ "title": "",
  "image": "./mmexport1771816377628.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/mmexport1771816382115.json

@@ -1,7 +1,7 @@
 {
- "title": "mmexport1771816382115",
+ "title": "",
  "image": "./mmexport1771816382115.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/mmexport1776564084994.json

@@ -1,7 +1,7 @@
 {
- "title": "mmexport1776564084994",
+ "title": "",
  "image": "./mmexport1776564084994.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }

content/photos/mmexport1776564092433.json

@@ -1,7 +1,7 @@
 {
- "title": "mmexport1776564092433",
+ "title": "",
  "image": "./mmexport1776564092433.jpg",
- "group": "street",
+ "group": "landscape",
  "alt": "",
  "exif": {}
 }