[Feature Request] Implement automatic cleanup of old Claude versions during updates

Bug Description
Claude installs seem to be keep all previous versions on my system when updating? There is current 6 previous versions just sitting in ~/.local/share/claude/versions taking up about 1GB of space?

Environment Info

• Platform: linux
• Terminal: ghostty
• Version: 2.0.72
• Feedback ID: 63379d89-00fb-4dbf-b31b-fa8a94cd4daf

> ls -lah ~/.local/share/claude/versions
  ⎿  total 1.2G
     drwxrwxr-x 2 4.0K Dec 21 15:05 .
     drwxrwxr-x 3 4.0K Jul 31 21:45 ..
     -rwxr-xr-x 1 134M Jul 31 23:33 1.0.65
     -rwxr-xr-x 1 202M Dec  4 22:47 2.0.58
     -rwxr-xr-x 1 196M Dec 11 19:41 2.0.65
     -rwxr-xr-x 1 198M Dec 13 14:55 2.0.69
     -rw------- 1 0    Dec 16 00:17 2.0.70
     -rwxr-xr-x 1 214M Dec 17 14:38 2.0.71
     -rwxr-xr-x 1 215M Dec 18 01:19 2.0.72
> du -hs ~/.local/share/claude/versions
  ⎿  1.2G       .local/share/claude/versions