- Re-issues oidc-auth cookie with maxAge so PWA sessions survive close/reopen
- Guards on c.get('oidcAuthJwt'): only runs when @hono/oidc-auth set a valid session
- Falsy oidcAuthJwt falls straight through — no resurrection of deleted/absent cookies
- Cookie attrs mirror the library: httpOnly, secure, sameSite=Lax, conditional domain
- maxAge reads OIDC_AUTH_EXPIRES (default 86400s)