0.5.0 — Dotfile management tools

New functions

Command	Description
/dotfile/resolve	Parse .dotfilemap entries
/dotfile/list	List mapped dotfiles
/dotfile/status	Show sync status ([=] [M] [!])
/dotfile/load	Copy HOME → repo (save)
/dotfile/install	Copy repo → HOME (deploy)
/dotfile/diff	Compare files (terminal or GUI)
/dotfile/edit	Open repo copy in editor

Also included

• dotfilemap.sample — self-contained reference with format docs and example entries
• 31 test cases covering env-var edge cases and all functional paths