feat: 统一后端分页查询与前端服务层适配

后端新增通用分页模块，为报销单、员工、预算、agent 资产等
端点统一接入分页参数和游标查询，优化 repository 层分页实
现，前端服务层适配分页响应结构，完善预算图表和全局样式，
优化侧边栏和企业选择器组件，引入 Element Plus 插件注册。

web/package-lock.json

@@ -12,14 +12,12 @@
         "@element-plus/icons-vue": "^2.3.2",
         "@vitejs/plugin-vue": "^5.2.4",
         "@vueuse/motion": "^3.0.3",
-        "chart.js": "^4.5.1",
         "echarts": "^6.1.0",
         "element-plus": "^2.14.0",
         "markdown-it": "^14.1.1",
         "pg": "^8.13.1",
         "vite": "^5.4.19",
         "vue": "^3.5.13",
-        "vue-chartjs": "^5.3.3",
         "vue-router": "^4.5.1"
       }
     },
@@ -803,12 +801,6 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
-    "node_modules/@kurkle/color": {
-      "version": "0.3.4",
-      "resolved": "https://registry.npmjs.org/@kurkle/color/-/color-0.3.4.tgz",
-      "integrity": "sha512-M5UknZPHRu3DEDWoipU6sE8PdkZ6Z/S+v4dD+Ke8IaNlpdSQah50lz1KtcFBa2vsdOnwbbnxJwVM4wty6udA5w==",
-      "license": "MIT"
-    },
     "node_modules/@nuxt/kit": {
       "version": "3.21.2",
       "resolved": "https://registry.npmjs.org/@nuxt/kit/-/kit-3.21.2.tgz",
@@ -1598,18 +1590,6 @@
         }
       }
     },
-    "node_modules/chart.js": {
-      "version": "4.5.1",
-      "resolved": "https://registry.npmjs.org/chart.js/-/chart.js-4.5.1.tgz",
-      "integrity": "sha512-GIjfiT9dbmHRiYi6Nl2yFCq7kkwdkp1W/lp2J99rX0yo9tgJGn3lKQATztIjb5tVtevcBtIdICNWqlq5+E8/Pw==",
-      "license": "MIT",
-      "dependencies": {
-        "@kurkle/color": "^0.3.0"
-      },
-      "engines": {
-        "pnpm": ">=8"
-      }
-    },
     "node_modules/chokidar": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-5.0.0.tgz",
@@ -3086,16 +3066,6 @@
         }
       }
     },
-    "node_modules/vue-chartjs": {
-      "version": "5.3.3",
-      "resolved": "https://registry.npmjs.org/vue-chartjs/-/vue-chartjs-5.3.3.tgz",
-      "integrity": "sha512-jqxtL8KZ6YJ5NTv6XzrzLS7osyegOi28UGNZW0h9OkDL7Sh1396ht4Dorh04aKrl2LiSalQ84WtqiG0RIJb0tA==",
-      "license": "MIT",
-      "peerDependencies": {
-        "chart.js": "^4.1.1",
-        "vue": "^3.0.0-0 || ^2.7.0"
-      }
-    },
     "node_modules/vue-component-type-helpers": {
       "version": "3.3.2",
       "resolved": "https://registry.npmmirror.com/vue-component-type-helpers/-/vue-component-type-helpers-3.3.2.tgz",