feat(xray): update xray-core to v26.7.11 and adapt panel

Bump xtls/xray-core to 50231eaf (v26.7.11) and the three binary pins
(DockerInit.sh, release.yml x2) in lockstep.

Adapt the panel to the upstream changes:

- Shadowsocks "none"/"plain" and VMess "none"/"zero" were removed from
  the core. A migration rewrites stored none/plain SS methods to a
  supported cipher and none/zero VMess security to "auto" (on both the
  clients column and inbound settings JSON); the SS build-time heal does
  the same so a row injected after boot cannot brick startup. The removed
  values are dropped from every frontend option list, schema and adapter,
  and coerced to "auto" at the Go link/sub/Clash emit sites and both link
  importers. Fix the CipherType_NONE sentinel that no longer compiles.

- Unencrypted vless/trojan outbounds to a public address are now refused
  by the core. Validate outbounds through the vendored config loader when
  saving the xray template and when storing/merging outbound
  subscriptions, so one such outbound cannot keep the core from starting.

- New TCP finalmask type "xmc" (Minecraft mimicry): add it to the sub
  link allowlist, the frontend enum and the FinalMask form (hostname,
  usernames, required password), and document it.

- streamSettings gained a "method" alias for "network"; canonicalize it
  to "network" at inbound save time and in the form adapters/schema so a
  method-keyed config keeps its transport.

- New root "env" config key is passed through xray.Config, compared in
  Equals, and forces a restart in the hot diff.

- REALITY now defaults minClientVer to 26.3.27; update the form
  placeholder.

internal/web/service/xray_setting.go

@@ -41,6 +41,21 @@ func (s *XraySettingService) CheckXrayConfig(XrayTemplateConfig string) error {
 	if err != nil {
 		return common.NewError("xray template config invalid:", err)
 	}
+	if len(xrayConfig.OutboundConfigs) > 0 {
+		var outbounds []json.RawMessage
+		if err := json.Unmarshal(xrayConfig.OutboundConfigs, &outbounds); err != nil {
+			return common.NewError("xray template config invalid: outbounds is not an array:", err)
+		}
+		for _, outbound := range outbounds {
+			if err := xray.ValidateOutboundConfig(outbound); err != nil {
+				tagged := struct {
+					Tag string `json:"tag"`
+				}{}
+				_ = json.Unmarshal(outbound, &tagged)
+				return common.NewError("xray core rejects outbound \""+tagged.Tag+"\":", err)
+			}
+		}
+	}
 	return nil
 }