Add MrTerm Web: self-hosted browser version (Docker Compose) with user accounts, per-user vaults encrypted by the login password, the desktop UI over WebSocket, SFTP upload/download over HTTP; share backend channels between Android and web (src/core/backend.js)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/renderer/styles.css

@@ -406,3 +406,6 @@ kbd { background: var(--card); border: 1px solid var(--border); border-bottom-wi
 [data-theme='macos'] .btn.primary { background: linear-gradient(rgba(40, 145, 255, .92), rgba(0, 110, 240, .92)); border-color: rgba(255, 255, 255, .45); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 4px 14px rgba(0, 122, 255, .3); }
 [data-theme='macos'] .modal-bg { -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
 [data-theme='macos'] .nav.active { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .9), 0 2px 8px rgba(30, 40, 80, .08); }
+
+/* Web-Version (Browser): Desktop-Funktionen ausblenden */
+.web .win-ctrls, .web #lockBtn, .web .nav[data-view='vpns'], .web .nav[data-view='forwards'], .web #updateBadge { display: none !important; }