Migrate from just to mise for task running (flakes-rg2j)
Add mise.toml files and shell abbreviations to migrate task running from just to mise. Keep justfiles intact during transition.
Summary of Changes
- Created at repo root with all 12 tasks from the main justfile
- Created with task
- Created with 4 preset tasks (update-presets + 3 individual)
- Added and abbreviations to fish () and nushell ()
- Justified files remain intact for the transition period
- All tasks verified working via
mise tasksandmise run vcs-status