fix(chat): image send 500 + table/newline formatting (v2026.07.20.1708)

frontend/src/pages/front/ChatPage.css

@@ -471,10 +471,15 @@
 }
 
 .md-table td {
-  padding: 10px 14px;
+  padding: 8px 12px;
   border-bottom: 1px solid #EEF0F4;
   color: var(--color-text-primary);
   vertical-align: top;
+  line-height: 1.5;
+}
+
+.md-table td br {
+  line-height: 0.8;
 }
 
 .md-table tbody tr:last-child td {