Extends primitives/options.ts with the five inbound-only option dicts
(TLS_VERSION_OPTION, TLS_CIPHER_OPTION, USAGE_OPTION,
DOMAIN_STRATEGY_OPTION, TCP_CONGESTION_OPTION) and lifts InboundFormModal
off @/models/inbound for 10 of its 12 imports. Only the Inbound class
and SSMethods (inbound vs outbound versions diverge by 2 entries) still
come from @/models/.
Widens NODE_ELIGIBLE_PROTOCOLS Set element type to string since the new
primitives const exposes a narrow literal union that `.has(arbitraryString)`
would otherwise reject.
f79e486f9f