Release 3.9.0+3: subscription-URL routing, emoji flags, Remnawave provisioning.

Route credential-less http(s) URLs pasted into the add-link field to
subscription import (fixes remaining 'proxy URI missing username').
Extend geoflag with RU country names and city hints; live Remnawave
names already carrying emoji flags are kept as-is. Add admin
provisioning via configs/remnawave-api.json (GET by-username / POST
users, 50 GB MONTH plan) and the «Выдать доступ» UI panel.

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitignore

@@ -4,6 +4,8 @@ bin/
 !dist/**/*.exe
 !dist/**/
 configs/config.json
+configs/remnawave-api.json
+dist/navis-release/windows/configs/
 configs/.navis-webview/
 cmd/vpnapp/resource.syso
 *.syso