feat(sub): modern xray JSON format with unified finalmask editor (#4912)

* feat(sub): add finalmask support to JSON subscriptions

* feat(sub): modern xray JSON format with unified finalmask editor

Drop the legacy JSON subscription format entirely and always emit the
modern xray shape:

- Flatten proxy outbounds (no vnext/servers) for vless/vmess/trojan/
  shadowsocks; hysteria was already flat.
- Express fragment/noise via streamSettings.finalmask instead of the
  legacy direct_out freedom dialer + dialerProxy sockopt.

The global finalmask (tcp/udp masks + quicParams) is stored as a single
setting (subJsonFinalMask) and merged into every generated stream,
replacing the separate subJsonFragment/subJsonNoises/subJsonQuicParams
settings.

Reuse the existing FinalMaskForm (used by inbound/outbound) for the
settings UI via a small bridge component; add a showAll prop so all
TCP/UDP/QUIC sections render for the global case. This supersedes the
hand-rolled Fragment/Noises/quicParams tabs with the full mask editor
(all mask types).

Note: this is a breaking change — JSON subscriptions now require a
recent xray client on the consumer side.

* fix

---------

Co-authored-by: biohazardous-man <biohazardous-man@users.noreply.github.com>
Co-authored-by: MHSanaei <ho3ein.sanaei@gmail.com>

sub/sub.go

@@ -120,16 +120,6 @@ func (s *Server) initRouter() (*gin.Engine, error) {
 		SubUpdates = "10"
 	}
 
-	SubJsonFragment, err := s.settingService.GetSubJsonFragment()
-	if err != nil {
-		SubJsonFragment = ""
-	}
-
-	SubJsonNoises, err := s.settingService.GetSubJsonNoises()
-	if err != nil {
-		SubJsonNoises = ""
-	}
-
 	SubJsonMux, err := s.settingService.GetSubJsonMux()
 	if err != nil {
 		SubJsonMux = ""
@@ -140,6 +130,11 @@ func (s *Server) initRouter() (*gin.Engine, error) {
 		SubJsonRules = ""
 	}
 
+	SubJsonFinalMask, err := s.settingService.GetSubJsonFinalMask()
+	if err != nil {
+		SubJsonFinalMask = ""
+	}
+
 	SubClashEnableRouting, err := s.settingService.GetSubClashEnableRouting()
 	if err != nil {
 		SubClashEnableRouting = false
@@ -236,7 +231,7 @@ func (s *Server) initRouter() (*gin.Engine, error) {
 
 	s.sub = NewSUBController(
 		g, LinksPath, JsonPath, ClashPath, subJsonEnable, subClashEnable, Encrypt, ShowInfo, RemarkModel, SubUpdates,
-		SubJsonFragment, SubJsonNoises, SubJsonMux, SubJsonRules, SubClashEnableRouting, SubClashRules, SubTitle, SubSupportUrl,
+		SubJsonMux, SubJsonRules, SubJsonFinalMask, SubClashEnableRouting, SubClashRules, SubTitle, SubSupportUrl,
 		SubProfileUrl, SubAnnounce, SubEnableRouting, SubRoutingRules)
 
 	return engine, nil