Add author information extraction to Telegram message parsing

telegram_client.py

@@ -159,12 +159,28 @@ class TelegramClient:
         # Convert newlines to HTML breaks AFTER adding reactions
         processed_text = processed_text.replace('\n', '<br>')
 
+        # Extract author information
+        author_str = ""
+        if message.sender_chat:
+            title = getattr(message.sender_chat, "title", "").strip()
+            username = getattr(message.sender_chat, "username", "").strip()
+            author_str = f"{title} by @{username}" if username else title
+        elif message.from_user:
+            first = getattr(message.from_user, "first_name", "").strip()
+            last = getattr(message.from_user, "last_name", "").strip()
+            username = getattr(message.from_user, "username", "").strip()
+            name = " ".join(filter(None, [first, last]))
+            author_str = f"{name} by @{username}" if username else name
+        else:
+            author_str = "Unknown author"
+
         return {
             "id": message.id,
             "date": message.date.isoformat(),
             "text": processed_text,
             "views": message.views or 0,
-            "media_group_id": message.media_group_id
+            "media_group_id": message.media_group_id,
+            "author": author_str
         }
 
     async def _parse_media(self, media_obj) -> dict: