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 ## Completed
 
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+- [x] **2026-07-08: Edit message textarea now fills full message width**  
+  `.msg-user { width: fit-content }` collapsed container when body swapped for textarea. CSS: `.msg-user.editing { width: 85% !important }`. JS: `editUserMessage()` adds/removes `editing` class. (commit f0031ea)
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