root ffbc917a5d Add mobile emulator mode for desktop testing ... - 390px-wide frame on desktop, mimics mobile Telegram - Toggle button (top-right): 'Mobile' / 'Fullscreen' - Auto-detects screen width, remembers choice in localStorage - Real mobile (≤768px) uses native layout		2026-08-20 17:54:45 +00:00
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app.css	Add mobile emulator mode for desktop testing	2026-08-20 17:54:45 +00:00