fix: upgrade hono to ^4.12.18 to address CVE-2026-44455, CVE-2026-44456, CVE-2026-44457, CVE-2026-44458

fix: upgrade hono to ^4.12.18 to address CVE-2026-44455, CVE-2026-44456, CVE-2026-44457, CVE-2026-44458 #2379