Add webapp skeletons

matrixgw_frontend/package-lock.json

@@ -14,7 +14,8 @@
         "@mui/icons-material": "^7.3.5",
         "@mui/material": "^7.3.5",
         "react": "^19.1.1",
-        "react-dom": "^19.1.1"
+        "react-dom": "^19.1.1",
+        "react-router": "^7.9.5"
       },
       "devDependencies": {
         "@eslint/js": "^9.36.0",
@@ -2012,6 +2013,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.0.2.tgz",
+      "integrity": "sha512-9Kr/j4O16ISv8zBBhJoi4bXOYNTkFLOqSL3UDB0njXxCXNezjeyVrJyGOWtgfs/q2km1gwBcfH8q1yEGoMYunA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/cosmiconfig": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-7.1.0.tgz",
@@ -3399,6 +3409,28 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react-router": {
+      "version": "7.9.5",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.9.5.tgz",
+      "integrity": "sha512-JmxqrnBZ6E9hWmf02jzNn9Jm3UqyeimyiwzD69NjxGySG6lIz/1LVPsoTCwN7NBX2XjCEa1LIX5EMz1j2b6u6A==",
+      "license": "MIT",
+      "dependencies": {
+        "cookie": "^1.0.1",
+        "set-cookie-parser": "^2.6.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-transition-group": {
       "version": "4.4.5",
       "resolved": "https://registry.npmjs.org/react-transition-group/-/react-transition-group-4.4.5.tgz",
@@ -3536,6 +3568,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.2.tgz",
+      "integrity": "sha512-oeM1lpU/UvhTxw+g3cIfxXHyJRc/uidd3yK1P242gzHds0udQBYzs3y8j4gCCW+ZJ7ad0yctld8RYO+bdurlvw==",
+      "license": "MIT"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",