chore(deps): consolidate dependabot updates and bump widget-sdk to 3.18.0

- bump @staffbase/widget-sdk ^3.17.0 → ^3.18.0
- bump @rjsf/{core,mui,utils,validator-ajv8} 5.24.13 → 6.5.2 (required by widget-sdk 3.18.0)
- bump axios ^1.15.0 → ^1.15.2 (security: prototype pollution & CRLF injection fixes)
- bump fast-uri 3.0.3 → 3.1.2 (security; yarn.lock only, resolved via reinstall)
- bump @babel/plugin-transform-modules-systemjs 7.27.1 → 7.29.4 (yarn.lock)
- bump prettier 3.8.1 → 3.8.3
- bump typescript 6.0.2 → 6.0.3
- bump webpack ^5.104.1 → ^5.106.2 (resolution pinned to 5.106.2)
- bump webpack-cli ^6.0.1 → ^7.0.2 (requires Node ≥20.9; CI uses Node 20)
- bump @mui/system ^7.3.7 → ^9.0.0
- bump @types/node 25.5.2 → 25.6.0
- add jest test env babel override + transformIgnorePatterns for @x0k ESM dep
  introduced by @rjsf/utils@6.x (restores same test baseline as main)

Closes #242, Closes #243, Closes #245, Closes #247, Closes #248, Closes #249

Co-authored-by: GitHub Copilot <copilot@noreply.github.com>

Author: maximizeIT

samples/weather-forecast/.babelrc

@@ -15,5 +15,20 @@
     "@babel/plugin-syntax-dynamic-import",
     "@babel/plugin-proposal-class-properties",
     "@babel/plugin-proposal-object-rest-spread"
-  ]
+  ],
+  "env": {
+    "test": {
+      "presets": [
+        [
+          "@babel/preset-env",
+          {
+            "targets": { "node": "current" },
+            "modules": "commonjs"
+          }
+        ],
+        "@babel/preset-react",
+        "@babel/preset-typescript"
+      ]
+    }
+  }
 }

samples/weather-forecast/jest.config.js

@@ -6,5 +6,9 @@ module.exports = {
     '\\.svg$': '<rootDir>/__mocks__/fileMock.js',
     '^axios$': 'axios/dist/node/axios.cjs'
   },
-  testEnvironment: 'jsdom',
+  testEnvironment: 'jsdom',  testEnvironmentOptions: {
+    customExportConditions: ['require', 'default'],
+  },  transformIgnorePatterns: [
+    '/node_modules/(?!(@x0k/json-schema-merge|@rjsf)/)',
+  ],
 };

samples/weather-forecast/package.json

@@ -17,9 +17,9 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@staffbase/widget-sdk": "^3.17.0",
+    "@staffbase/widget-sdk": "^3.18.0",
     "acorn": "^8.16.0",
-    "axios": "^1.15.0",
+    "axios": "^1.15.2",
     "date-fns": "^2.30.0",
     "dayjs": "1.11.20",
     "react": "^18.3.1",
@@ -40,18 +40,18 @@
     "@emotion/styled": "^11.14.1",
     "@mui/icons-material": "^6.5.0",
     "@mui/material": "^6.5.0",
-    "@mui/system": "^7.3.7",
-    "@rjsf/core": "5.24.13",
-    "@rjsf/mui": "5.24.13",
-    "@rjsf/utils": "5.24.13",
-    "@rjsf/validator-ajv8": "5.24.13",
+    "@mui/system": "^9.0.0",
+    "@rjsf/core": "6.5.2",
+    "@rjsf/mui": "6.5.2",
+    "@rjsf/utils": "6.5.2",
+    "@rjsf/validator-ajv8": "6.5.2",
     "@svgr/webpack": "8.1.0",
     "@testing-library/dom": "^10.4.1",
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.2",
     "@types/jest": "^30.0.0",
     "@types/json-schema": "^7.0.15",
-    "@types/node": "25.5.2",
+    "@types/node": "25.6.0",
     "@types/react": "^18.3.24",
     "@types/react-dom": "^18.3.7",
     "@types/webpack": "5.28.5",
@@ -70,17 +70,17 @@
     "jest-json-schema": "^6.1.0",
     "js-base64": "3.7.8",
     "minimal-polyfills": "2.2.3",
-    "prettier": "3.8.1",
+    "prettier": "3.8.3",
     "ts-loader": "^9.5.7",
     "ts-node": "10.9.2",
-    "typescript": "6.0.2",
-    "webpack": "^5.104.1",
-    "webpack-cli": "^6.0.1",
+    "typescript": "6.0.3",
+    "webpack": "^5.106.2",
+    "webpack-cli": "^7.0.2",
     "webpack-dev-server": "^5.2.3",
     "webpack-merge": "^6.0.1"
   },
   "resolutions": {
-    "webpack": "5.105.4",
+    "webpack": "5.106.2",
     "nth-check": ">=2.0.1",
     "flatted": "3.4.2",
     "minimatch": "3.1.4",