Release 3.8.2+1: bump Windows product version to 3.8.2.1.

Align update.go, versioninfo, UI badge, Android/MSIX, and update feeds; rebuild Windows binaries and SHA256.

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

internal/appui/index.html

@@ -854,7 +854,7 @@
       <div class="brand-wrap">
         <div class="brand-row">
           <h1 class="brand">Navis</h1>
-          <span class="badge-ver" id="badgeVer">2.9.0</span>
+          <span class="badge-ver" id="badgeVer">3.8.2</span>
         </div>
         <p class="tagline">Быстрый клиент · Naive · Hy2 · AWG · Xray</p>
       </div>

internal/update/update.go

@@ -18,7 +18,7 @@ import (
 
 // CurrentVersion is the product/semver used for update eligibility (feed "version").
 // Keep major.minor.patch only — no build suffix here.
-const CurrentVersion = "2.9.0"
+const CurrentVersion = "3.8.2"
 
 // BuildNumber is the monotonic build within CurrentVersion (Windows FileVersion 4th part,
 // macOS CFBundleVersion suffix, Android versionCode low digits). Bump on every release build.