fix(web): replace code editor

web/package.json

@@ -13,6 +13,14 @@
     "@antv/layout": "^1.2.14-beta.8",
     "@antv/x6": "^3.0.1",
     "@antv/x6-react-shape": "^3.0.1",
+    "@codemirror/lang-cpp": "^6.0.3",
+    "@codemirror/lang-java": "^6.0.2",
+    "@codemirror/lang-javascript": "^6.2.4",
+    "@codemirror/lang-python": "^6.2.1",
+    "@codemirror/lang-rust": "^6.0.2",
+    "@codemirror/state": "^6.5.4",
+    "@codemirror/theme-one-dark": "^6.1.3",
+    "@codemirror/view": "^6.39.12",
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/modifiers": "^9.0.0",
     "@dnd-kit/sortable": "^10.0.0",
@@ -25,6 +33,7 @@
     "antd": "^5.27.4",
     "axios": "^1.12.2",
     "clsx": "^2.1.1",
+    "codemirror": "^6.0.2",
     "copy-to-clipboard": "^3.3.3",
     "crypto-js": "^4.2.0",
     "dayjs": "^1.11.18",
@@ -55,6 +64,7 @@
     "@tailwindcss/postcss": "^4.1.14",
     "@tailwindcss/typography": "^0.5.19",
     "@tailwindcss/vite": "^4.1.14",
+    "@types/codemirror": "^5.60.17",
     "@types/crypto-js": "^4.2.2",
     "@types/js-yaml": "^4.0.9",
     "@types/node": "^24.6.0",