fix bugs

package-lock.json

@@ -16,6 +16,7 @@
         "@dcloudio/uni-migration": "^2.0.2-4080720251210002",
         "cache-loader": "^4.1.0",
         "html-webpack-plugin": "^4.5.2",
+        "pdfjs-dist": "^2.16.105",
         "vue": "^2.6.14"
       },
       "devDependencies": {
@@ -76,6 +77,7 @@
       "version": "7.28.5",
       "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.28.5.tgz",
       "integrity": "sha512-e7jT4DxYvIDLk1ZHmU/m/mB19rex9sv0c2ftBtjSBv+kVM/902eh0fINUzD7UwLLNR+jU585GxUJ8/EBfAM5fw==",
+      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.27.1",
         "@babel/generator": "^7.28.5",
@@ -2854,6 +2856,7 @@
       "resolved": "https://registry.npmjs.org/@vue/cli-service/-/cli-service-4.5.19.tgz",
       "integrity": "sha512-+Wpvj8fMTCt9ZPOLu5YaLkFCQmB4MrZ26aRmhhKiCQ/4PMoL6mLezfqdt6c+m2htM+1WV5RunRo+0WHl2DfwZA==",
       "dev": true,
+      "peer": true,
       "dependencies": {
         "@intervolga/optimize-cssnano-plugin": "^1.0.5",
         "@soda/friendly-errors-webpack-plugin": "^1.7.1",
@@ -3514,6 +3517,7 @@
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
       "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+      "peer": true,
       "dependencies": {
         "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
@@ -4410,6 +4414,7 @@
           "url": "https://github.com/sponsors/ai"
         }
       ],
+      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -5329,6 +5334,7 @@
       "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.1.2.tgz",
       "integrity": "sha512-Uh7crJAco3AjBvgAy9Z75CjK8IG+gxaErro71THQ+vv/bl4HaQcpkexAY8KVW/T6D2W2IRr+couF/knIRkZMIQ==",
       "dev": true,
+      "peer": true,
       "dependencies": {
         "cacache": "^12.0.3",
         "find-cache-dir": "^2.1.0",
@@ -6425,6 +6431,13 @@
         "url": "https://github.com/fb55/domhandler?sponsor=1"
       }
     },
+    "node_modules/dommatrix": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/dommatrix/-/dommatrix-1.0.3.tgz",
+      "integrity": "sha512-l32Xp/TLgWb8ReqbVJAFIvXmY7go4nTxxlWiAFyhoQw9RKEOHBZNnyGvJWqDVSPmq3Y9HlM4npqF/T6VMOXhww==",
+      "deprecated": "dommatrix is no longer maintained. Please use @thednp/dommatrix.",
+      "license": "MIT"
+    },
     "node_modules/domutils": {
       "version": "2.8.0",
       "resolved": "https://registry.npmjs.org/domutils/-/domutils-2.8.0.tgz",
@@ -7369,6 +7382,7 @@
       "resolved": "https://registry.npmjs.org/file-loader/-/file-loader-4.3.0.tgz",
       "integrity": "sha512-aKrYPYjF1yG3oX0kWRrqrSMfgftm7oJW5M+m4owoldH5C51C0RkIwB++JbRvEW3IU6/ZG5n8UvEcdgwOt2UOWA==",
       "dev": true,
+      "peer": true,
       "dependencies": {
         "loader-utils": "^1.2.3",
         "schema-utils": "^2.5.0"
@@ -8440,6 +8454,7 @@
       "version": "4.5.2",
       "resolved": "https://registry.npmjs.org/html-webpack-plugin/-/html-webpack-plugin-4.5.2.tgz",
       "integrity": "sha512-q5oYdzjKUIPQVjOosjgvCHQOv9Ett9CYYHlgvJeXG0qQvdSojnBq4vAdQBwn1+yGveAwHCoe/rMR86ozX3+c2A==",
+      "peer": true,
       "dependencies": {
         "@types/html-minifier-terser": "^5.0.0",
         "@types/tapable": "^1.0.5",
@@ -11295,6 +11310,24 @@
         }
       ]
     },
+    "node_modules/pdfjs-dist": {
+      "version": "2.16.105",
+      "resolved": "https://registry.npmjs.org/pdfjs-dist/-/pdfjs-dist-2.16.105.tgz",
+      "integrity": "sha512-J4dn41spsAwUxCpEoVf6GVoz908IAA3mYiLmNxg8J9kfRXc2jxpbUepcP0ocp0alVNLFthTAM8DZ1RaHh8sU0A==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "dommatrix": "^1.0.3",
+        "web-streams-polyfill": "^3.2.1"
+      },
+      "peerDependencies": {
+        "worker-loader": "^3.0.8"
+      },
+      "peerDependenciesMeta": {
+        "worker-loader": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/performance-now": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
@@ -11403,6 +11436,7 @@
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.39.tgz",
       "integrity": "sha512-yioayjNbHn6z1/Bywyb2Y4s3yvDAeXGOyxqD+LnVOinq6Mdmd++SW2wUNVzavyyHxd6+DxzWGIuosg6P1Rj8uA==",
       "dev": true,
+      "peer": true,
       "dependencies": {
         "picocolors": "^0.2.1",
         "source-map": "^0.6.1"
@@ -13029,6 +13063,7 @@
       "resolved": "https://registry.npmjs.org/sass/-/sass-1.96.0.tgz",
       "integrity": "sha512-8u4xqqUeugGNCYwr9ARNtQKTOj4KmYiJAVKXf2CTIivTCR51j96htbMKWDru8H5SaQWpyVgTfOF8Ylyf5pun1Q==",
       "dev": true,
+      "peer": true,
       "dependencies": {
         "chokidar": "^4.0.0",
         "immutable": "^5.0.2",
@@ -16032,10 +16067,20 @@
         "defaults": "^1.0.3"
       }
     },
+    "node_modules/web-streams-polyfill": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.3.tgz",
+      "integrity": "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/webpack": {
       "version": "4.47.0",
       "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.47.0.tgz",
       "integrity": "sha512-td7fYwgLSrky3fI1EuU5cneU4+pbH6GgOfuKNS1tNPcfdGinGELAqsb/BP4nnvZyKSG2i/xFGU7+n2PvZA8HJQ==",
+      "peer": true,
       "dependencies": {
         "@webassemblyjs/ast": "1.9.0",
         "@webassemblyjs/helper-module-context": "1.9.0",