Add zod validation for Trino, auth and query settings #402

Trino, auth and query settings still fall back silently on invalid input.
Examples: STACKABLE_COCKPIT_QUERY_TTL uses Number(...) || 1800, STACKABLE_COCKPIT_TRINO_AUTH_TYPE is an unchecked type cast, and STACKABLE_COCKPIT_TRINO_TLS_INSECURE / STACKABLE_COCKPIT_TRINO_USER_IMPERSONATION treat any unexpected value as a default. A typo in these values therefore changes behaviour without any error, which for TLS verification and impersonation is a security concern.