Replace .eslintrc.json with eslint.config.js using the new flat config
format required by ESLint 10. Swap @typescript-eslint/eslint-plugin and
@typescript-eslint/parser for the unified typescript-eslint package.
Upgrade TypeScript to 5.9 and @types/node to 25. Apply automatic code
fixes: remove unused catch bindings and preserve error cause in auth
header parsing.
Some devices preserve cookies set in a previous session and pass them
on to the next session. The presence of a session cookie in the Inform
request causes an unnecessary DB query and, in some edge cases, an
Invalid Session error.
Zaid Humaimidi