feat: Vue SPA 添加 KDocs 在线状态显示 + 清理废弃模板

功能更新：
- AccountsPage.vue: 工具栏显示 KDocs 在线状态（就绪/离线）
- settings.js: 添加 fetchKdocsStatus API 函数
- 每60秒自动刷新状态

代码清理：
- 删除废弃的 legacy 模板文件（约170KB）
  - templates/index.html
  - templates/login.html
  - templates/register.html
  - templates/reset_password.html

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

static/app/.vite/manifest.json

@@ -1,20 +1,20 @@
 {
-  "_accounts--hQB0HMJ.js": {
-    "file": "assets/accounts--hQB0HMJ.js",
+  "_accounts-DOetW5YJ.js": {
+    "file": "assets/accounts-DOetW5YJ.js",
     "name": "accounts",
     "imports": [
       "index.html"
     ]
   },
-  "_auth-Cm-kEDXF.js": {
-    "file": "assets/auth-Cm-kEDXF.js",
+  "_auth-Hh1F6LOW.js": {
+    "file": "assets/auth-Hh1F6LOW.js",
     "name": "auth",
     "imports": [
       "index.html"
     ]
   },
   "index.html": {
-    "file": "assets/index-D7kwaKcv.js",
+    "file": "assets/index-7hTgh8K-.js",
     "name": "index",
     "src": "index.html",
     "isEntry": true,
@@ -32,64 +32,64 @@
     ]
   },
   "src/pages/AccountsPage.vue": {
-    "file": "assets/AccountsPage-DOK2DZIQ.js",
+    "file": "assets/AccountsPage-D8z2pFq6.js",
     "name": "AccountsPage",
     "src": "src/pages/AccountsPage.vue",
     "isDynamicEntry": true,
     "imports": [
-      "_accounts--hQB0HMJ.js",
+      "_accounts-DOetW5YJ.js",
       "index.html"
     ],
     "css": [
-      "assets/AccountsPage-Cwi1Wpgg.css"
+      "assets/AccountsPage-CMc3b3Am.css"
     ]
   },
   "src/pages/LoginPage.vue": {
-    "file": "assets/LoginPage-Bh9f42Ek.js",
+    "file": "assets/LoginPage-CdYvfyH1.js",
     "name": "LoginPage",
     "src": "src/pages/LoginPage.vue",
     "isDynamicEntry": true,
     "imports": [
       "index.html",
-      "_auth-Cm-kEDXF.js"
+      "_auth-Hh1F6LOW.js"
     ],
     "css": [
       "assets/LoginPage-CnwOLKJz.css"
     ]
   },
   "src/pages/RegisterPage.vue": {
-    "file": "assets/RegisterPage-DXsTO3Cf.js",
+    "file": "assets/RegisterPage-9AQGZ_pd.js",
     "name": "RegisterPage",
     "src": "src/pages/RegisterPage.vue",
     "isDynamicEntry": true,
     "imports": [
       "index.html",
-      "_auth-Cm-kEDXF.js"
+      "_auth-Hh1F6LOW.js"
     ],
     "css": [
       "assets/RegisterPage-BOcNcW5D.css"
     ]
   },
   "src/pages/ResetPasswordPage.vue": {
-    "file": "assets/ResetPasswordPage-CbAWo2Ml.js",
+    "file": "assets/ResetPasswordPage-Dii_hXu1.js",
     "name": "ResetPasswordPage",
     "src": "src/pages/ResetPasswordPage.vue",
     "isDynamicEntry": true,
     "imports": [
       "index.html",
-      "_auth-Cm-kEDXF.js"
+      "_auth-Hh1F6LOW.js"
     ],
     "css": [
       "assets/ResetPasswordPage-DybfLMAw.css"
     ]
   },
   "src/pages/SchedulesPage.vue": {
-    "file": "assets/SchedulesPage-CmS2H_0Y.js",
+    "file": "assets/SchedulesPage-DH01Lsib.js",
     "name": "SchedulesPage",
     "src": "src/pages/SchedulesPage.vue",
     "isDynamicEntry": true,
     "imports": [
-      "_accounts--hQB0HMJ.js",
+      "_accounts-DOetW5YJ.js",
       "index.html"
     ],
     "css": [
@@ -97,7 +97,7 @@
     ]
   },
   "src/pages/ScreenshotsPage.vue": {
-    "file": "assets/ScreenshotsPage-BU4GP4nV.js",
+    "file": "assets/ScreenshotsPage-omyYT14c.js",
     "name": "ScreenshotsPage",
     "src": "src/pages/ScreenshotsPage.vue",
     "isDynamicEntry": true,
@@ -109,7 +109,7 @@
     ]
   },
   "src/pages/VerifyResultPage.vue": {
-    "file": "assets/VerifyResultPage-DUMGEC2F.js",
+    "file": "assets/VerifyResultPage-C15J2JVk.js",
     "name": "VerifyResultPage",
     "src": "src/pages/VerifyResultPage.vue",
     "isDynamicEntry": true,