refactor(wireguard): drop removed workers field (xray v26.6.22) (#5509)

* v3.4.0

* refactor(wireguard): drop removed `workers` field (xray v26.6.22)

xray-core v26.6.22 (PR #6287) removed the WireGuard `workers` (num_workers)
config field; the engine now relies on wireguard-go's internal worker
fallback and no longer reads it. Remove it from the panel so it stops
emitting a key xray ignores.

Removed from the inbound/outbound/outbound-form WireGuard schemas, both
WireGuard forms, the outbound form adapter (both directions) and defaults,
the two affected tests, and the `workers` label in all 13 locales. Existing
configs that still carry workers are simply dropped on parse — no migration
needed since the field had no runtime effect.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Update version

---------

Co-authored-by: MHSanaei <ho3ein.sanaei@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/lib/xray/outbound-defaults.ts

@@ -111,7 +111,6 @@ export function createDefaultWireguardOutboundSettings(
     mtu: 1420,
     secretKey,
     address: [],
-    workers: 2,
     peers: [{
       publicKey: '',
       allowedIPs: ['0.0.0.0/0', '::/0'],

frontend/src/lib/xray/outbound-form-adapter.ts

@@ -205,7 +205,6 @@ function wireguardFromWire(raw: Raw): WireguardOutboundFormSettings {
     secretKey,
     pubKey,
     address: addressArr.join(','),
-    workers: asNumber(raw.workers, 2),
     domainStrategy: ((): WireguardOutboundFormSettings['domainStrategy'] => {
       const allowed = ['ForceIP', 'ForceIPv4', 'ForceIPv4v6', 'ForceIPv6', 'ForceIPv6v4'];
       const s = asString(raw.domainStrategy);
@@ -495,7 +494,6 @@ function wireguardToWire(s: WireguardOutboundFormSettings) {
     mtu: s.mtu || undefined,
     secretKey: s.secretKey,
     address: s.address ? s.address.split(',').map((x) => x.trim()).filter(Boolean) : [],
-    workers: s.workers || undefined,
     domainStrategy: s.domainStrategy || undefined,
     reserved: s.reserved
       ? s.reserved.split(',').map((x) => Number(x.trim())).filter((n) => Number.isFinite(n))