fix: resolve subscription UX issues and add placeholder pages

- Profile: show "未订阅" card when subscription inactive/0 days
- Profile: subscription management navigates to page instead of modal
- Subscribe-plans: data-driven plan cards with mock payment flow
- Subscribe-plans: show current subscription status at top
- Subscribe-prompt: "先使用普通模式" goes to wear-check directly
- Add help and contact placeholder pages
- Fix unbindDevice to work without explicit deviceId

admin-console/package-lock.json

@@ -13,7 +13,6 @@
         "@dcloudio/uni-components": "3.0.0-4020920240930001",
         "@dcloudio/uni-h5": "3.0.0-4020920240930001",
         "pinia": "^2.1.0",
-        "uview-plus": "^3.2.0",
         "vue": "^3.4.0"
       },
       "devDependencies": {
@@ -10951,16 +10950,6 @@
         "uuid": "bin/uuid"
       }
     },
-    "node_modules/uview-plus": {
-      "version": "3.7.36",
-      "resolved": "https://registry.npmmirror.com/uview-plus/-/uview-plus-3.7.36.tgz",
-      "integrity": "sha512-44pW0oKKatYxCHhXPljaNv5E+CESSJlhsz0FRZRNpMv1ms02m5Agk+CNpgDnv/XNHt9YxHdYSYerN+xnNP5orw==",
-      "engines": {
-        "HBuilderX": "^3.1.0",
-        "uni-app": "^4.66",
-        "uni-app-x": ""
-      }
-    },
     "node_modules/v8-to-istanbul": {
       "version": "8.1.1",
       "resolved": "https://registry.npmmirror.com/v8-to-istanbul/-/v8-to-istanbul-8.1.1.tgz",