History navigation cursor should move to end of line

Description

When using ↑/↓ arrow keys to navigate command history in the chat input, the cursor is placed at the beginning of the recalled line instead of the end, unlike standard Unix terminal behavior.

Expected Behavior

Cursor should move to the end of the line after history recall (consistent with bash/zsh readline behavior).

Actual Behavior

Cursor lands at the beginning of the line.

Workaround

Press End or Ctrl+E after pressing ↑ to manually move cursor to end of line.

Suggested Fix

Either:

1. Move cursor to end of line by default after history recall, or
2. Make this behavior configurable via keybindings.json