chore(deps-dev): bump @hey-api/openapi-ts in /frontend

Bumps [@hey-api/openapi-ts](https://github.com/hey-api/hey-api/tree/HEAD/packages/openapi-ts) from 0.98.2 to 0.99.0.
- [Release notes](https://github.com/hey-api/hey-api/releases)
- [Changelog](https://github.com/hey-api/hey-api/blob/main/packages/openapi-ts/CHANGELOG.md)
- [Commits](https://github.com/hey-api/hey-api/commits/@hey-api/openapi-ts@0.99.0/packages/openapi-ts)

---
updated-dependencies:
- dependency-name: "@hey-api/openapi-ts"
  dependency-version: 0.99.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

frontend/package.json

@@ -43,7 +43,7 @@
     },
     "devDependencies": {
         "@biomejs/biome": "^2.5.0",
-        "@hey-api/openapi-ts": "^0.98.2",
+        "@hey-api/openapi-ts": "^0.99.0",
         "@types/marked": "^6.0.0",
         "@types/node": "^25.9.3",
         "@types/qrcode": "^1.5.6",