[Release] Prepare v1.11.0 stable

[Regstar2]

Summary

Prepare TgWsProxy Android v1.11.0 as the stable release after v1.11.0-beta.1.

Release metadata

• versionName 1.11.0
• versionCode 54
• expected tag: v1.11.0
• expected asset: TgWsProxy-Android-v1.11.0-arm64-v8a.apk

Documentation

• add short GitHub Release notes plus full RU/EN release notes;
• make docs/cloudflare-worker.md the canonical Worker guide;
• retire the stale legacy WebSocket Worker guide with a compatibility pointer;
• document the stable awg_warp data path and automatic Consumer WARP provisioning order;
• explicitly separate Telegram cf_worker_ws Workers from WARP provisioning-only Workers;
• document the three built-in project provisioning Workers as config-generation/activation fallback only;
• document custom provisioning Worker validation and warp-bootstrap-v1;
• refresh release/testing checklists.

Release automation

• align scripts/ci.ps1 and scripts/audit-release.ps1 with 1.11.0 / versionCode 54;
• keep the existing exact-tag release workflow and signing path unchanged.

Pre-tag manual gates

The stable tag must not be created until the signed APK has been smoke-tested on a real device, including:

• upgrade over v1.10.14;
• upgrade over v1.11.0-beta.1;
• MTProto/CF messages and media;
• automatic WARP profile creation;
• actual_backend=awg_warp traffic;
• custom provisioning Worker;
• built-in provisioning Worker opt-out and provisioning-only separation.

Full checklist: docs/releases/RELEASE_CHECKLIST.md.

Closes no feature issue; #84, #86 and #88 are already completed and are documented as stable release scope.