Update changelog.md for version 0.0.397

Author: github-actions[bot]

changelog.md

@@ -1,3 +1,14 @@
+## 0.0.397 - 2026-01-28
+
+- `/mcp show <server-name>` displays server details and available tools
+- Header layout adapts better to narrow terminal widths
+- Plan mode input text is more readable
+- Content pasted into the prompt over 30 KB is automatically saved to workspace files
+- Homebrew tools work correctly on macOS with zsh as default shell
+- Add --acp flag to start as Agent Client Protocol server
+- Directories now appear in @mention autocomplete
+- Session summary displays accurate line counts
+
 ## 0.0.396 - 2026-01-27
 
 - Skill names can include uppercase letters