senke 5063a941d2 feat(chat): delivered status display ... - Add status and delivered_at to ChatMessage - Handle MessageDelivered WebSocket event - Send Delivered when receiving NewMessage or loading history - Display ✓ (sent) / ✓✓ (delivered) in ChatMessageComponent		2026-02-17 16:42:36 +01:00
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useChat.ts	feat(chat): delivered status display	2026-02-17 16:42:36 +01:00