GarandPLG
6c50da8c18
- Introduce `NixModules` struct containing file paths, parsed ASTs, and option lists. - Add `parse_nix` and `build_nix_modules` helpers for centralized parsing. - Update CLI to use `build_nix_modules` instead of manual parsing. - Extend `App` with system/home paths and ASTs, enabling in‑place editing. - Implement boolean toggle on Enter: update AST, rewrite file, refresh modules, and report action. - Simplify event handling, adding shortcuts `1`/`2` to switch files. - Revise UI layout, introduce footer with usage hints and last‑action status. - Adjust imports and remove obsolete code across modules.