Finalize full refactor of affinity-cli — new modular architecture, CLI, installer discovery, and Wine backend

This merge delivers the first complete, production-ready version of affinity-cli.

Key changes:
- Replaced placeholder commands with a full Click-based CLI.
- Added modular architecture: config loader, installer discovery, Wine executor, and unified main entrypoint.
- Implemented automatic detection of Affinity installers (v1/v2) with intelligent version preference.
- Added runtime config support with validation (paths, prefixes, version overrides).
- Implemented Wine execution layer with silent mode, dry-run, and detailed logging.
- Reworked README with clear user guidance, examples, installer placement, and legal notes.
- Added unit tests for config handling and installer selection.
- Removed outdated/unused modules and streamlined project structure.

This marks the foundation for future features: Proton integration, desktop entry generation, richer status reporting, multi-prefix support, and extended automation.

Author: ind4skylivey

README.md

@@ -1,8 +1,5 @@
-"""
-Affinity CLI - Universal Linux Installer for Affinity Products
-Professional one-command installation for Affinity Photo, Designer, and Publisher
-"""
+"""Affinity CLI package metadata."""
 
-__version__ = "1.0.0-beta"
+__version__ = "1.1.0"
 __author__ = "ind4skylivey"
 __license__ = "MIT"