* tunnel: rename settings to Xray's current schema (address →
rewriteAddress, port → rewritePort, network → allowedNetwork) in
the model, form modal, info modal, and the bundled API inbound
template; expose portMap so per-port forwarding can be configured
from the panel.
* tun: add the full TUN protocol form and read-only info blocks
(name, mtu, gateway, dns, userLevel, autoSystemRoutingTable,
autoOutboundsInterface) — previously the protocol was selectable
but the form rendered blank.
* hysteria: surface the stream-level version, obfs password, and
udpIdleTimeout fields that the model already supported.
Refs https://xtls.github.io/config/inbounds/tunnel.html
Refs https://xtls.github.io/config/inbounds/tun.html
Refs https://xtls.github.io/config/transports/hysteria.html
InboundFormModal: switching out of the Advanced tab now parses the three
JSON textareas and rebuilds the structured Inbound via Inbound.fromJson,
so the Basic tab reflects what was pasted. Invalid JSON keeps the user
on Advanced with a specific parse error.
XrayPage: Save now parses xraySetting upfront and snaps the user back to
the Advanced tab on invalid JSON instead of letting the backend reject a
generic blob.
