Allow end-aligned truncation for path and branch footer items

Describe the feature or problem you'd like to solve

When the path or branch name is too long, only the end is truncated.

Proposed solution

Add a per-item truncation setting to  /footer  (and  /statusline ) for values such as the current working directory and Git branch. Support at least  start  (current behavior),  end , and optionally  middle  truncation. With  end  selected, render an ellipsis followed by the trailing portion of the value—for example,  …\foo\.worktrees\bar  and  …/feature-name —so the most distinguishing directory and branch suffix remain visible in narrow terminals. Persist the preference with the existing footer configuration.

Example prompts or workflows

No response

Additional context

No response

Start by locating the footer and statusline configuration and rendering entry points, then trace how current path and branch values are truncated and persisted. Verify the existing start-truncation behavior and determine where a per-item start, end, or middle preference belongs. Done means both interfaces retain the setting and show the requested trailing path or branch portion with an ellipsis in narrow terminals.