A VLESS or Trojan inbound on TCP with TLS or Reality can now act as a
fallback master: pick existing inbounds as children and the panel auto-
fills the SNI / ALPN / path / xver routing fields from each child's
transport, auto-builds settings.fallbacks at config-gen time, and
rewrites the child's client-share link so it advertises the master's
reachable endpoint and TLS state instead of the child's loopback listen.
Layout matches the Xray All-in-One Nginx example: master at :443 with
clients + TLS, each child on 127.0.0.1 with its own transport+clients.
Order matters (Xray walks fallbacks top-to-bottom) — reorder via the
per-row up/down arrows. Path / SNI / ALPN are exposed under a per-row
Edit toggle for the rare cases where the auto-derivation needs
overriding; otherwise just pick a child and you're done.
Backend: new InboundFallback table + FallbackService (GetByMaster /
SetByMaster / GetParentForChild / BuildFallbacksJSON); two routes
(GET / POST /panel/api/inbounds/:id/fallbacks); xray.GetXrayConfig
injects settings.fallbacks for any VLESS/Trojan TCP-TLS/Reality
inbound; GetInbounds annotates each child with FallbackParent so the
frontend can rewrite links without an extra round-trip.
Link projection covers every emission path — clients-page QR/links,
per-inbound Get URL, raw subscription, sub-JSON, sub-Clash, and the
inbounds-page link/info/QR — via a shared projectThroughFallbackMaster
on the backend and a shared projectChildThroughMaster on the frontend
that both handle the panel-tracked relationship and the legacy
unix-socket (@vless-ws) convention.
Strings translated into all 12 non-English locales.
