Moved the outbound-only protocol field blocks (loopback, blackhole, dns) out of the modal render body into outbound-only-fields.tsx. First render-body extraction behind the per-protocol snapshot net: loopback/blackhole/dns snapshots unchanged -> verified no behavior change. typecheck/lint/build green.
OutboundFormModal.tsx 2238 -> 2080. Moved the pure option arrays/sets and the stream-slice helpers (newStreamSlice, hysteriaStreamSlice, isMuxAllowed, buildAddModeValues) into outbound-form-constants.ts and outbound-form-helpers.ts. Per-protocol render snapshots unchanged -> verified no behavior change. typecheck/lint/build green.
Decouple Outbound from Inbound schemas: SSMethodSchema and VmessSecuritySchema (shared between inbound & outbound) now live in a neutral schemas/protocols/shared/ module. Outbound no longer reaches into schemas/protocols/inbound/*. Pure relocation + import rewiring; schema values identical, snapshots & golden tests unchanged.
