Add Profile Support to daje

[Wabri]

Description

Implement basic support for profile-based dotfile management.

A profile represents a group of dotfiles associated with a particular environment (e.g., tumbleweed-sway). The user can apply a profile to their home directory using daje apply <profile>.

Profiles are stored under ~/.daje/profiles/<profile-name>/.

Requirements

• Add ~/.daje/profiles/<profile-name> directory layout
• When daje apply is called:
  • Load the requested profile
  • Copy/symlink the files to $HOME
• Implement simple error handling if:
  • The profile doesn't exist
  • The profile has no files
• Update apply.go to call this logic
• The code must be cover with unit tests

Suggestions

~/.daje/
├── profiles/
│   ├── common/
│   │   └── .bashrc
│   └── sway/
│       └── .config/hypr/hyprland.conf

Acceptance Criteria

• AC1: daje apply sway applies the files in ~/.daje/profiles/sway/ to local environment
• AC2: Errors are clearly reported if the profile does not exist
• AC3: Unit tests pass and cover new code