Inline the masquerade fields directly into both hysteria transport forms
(inbounds/form/protocols/hysteria + xray/outbounds/transport/hysteria)
and delete the shared lib/xray/forms/transport/HysteriaMasqueradeForm so
each hysteria form is self-contained. The masquerade JSX is unchanged;
form is typed as the untyped FormInstance (as the shared component was)
so the masquerade name paths still resolve. No behavior change.
Move the last three oversized inline stream blocks out of
OutboundFormModal into presentational components under
xray/outbounds/transport/: SockoptForm (~260 lines, the worst offender),
MuxForm, and HysteriaForm. Each takes the form instance; MuxForm also
takes protocol/network and keeps its isMuxAllowed gate. OutboundFormModal
drops from 962 to 621 lines and no inline section now exceeds the
250-line guideline. Existing outbound-form-modal snapshots already cover
sockopt/mux and stay byte-identical, confirming no behavior change.
