Unbitch flake.nix - extract shell scripts to separate files

- Moved all inline shell scripts to packages/scripts/
- Created packages/default.nix for clean package definitions
- Reduced flake.nix from 400+ lines to ~80 lines
- Maintained all functionality while improving maintainability
- All builds and checks still pass

packages/scripts/compare-modes.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+echo "🔍 dots-hyprland Configuration Modes"
+echo "===================================="
+echo ""
+echo "📋 Available modes:"
+echo ""
+echo "1. 🔒 DECLARATIVE MODE"
+echo "   • Files managed by Home Manager"
+echo "   • Read-only configuration"
+echo "   • Automatic updates with 'home-manager switch'"
+echo "   • Best for: Set-and-forget users"
+echo "   • Build: nix build .#homeConfigurations.declarative.activationPackage"
+echo ""
+echo "2. ✏️  WRITABLE MODE"
+echo "   • Files staged to ~/.configstaging"
+echo "   • User copies/modifies configuration"
+echo "   • Full control over files"
+echo "   • Best for: Customization and development"
+echo "   • Build: nix build .#homeConfigurations.writable.activationPackage"
+echo ""
+echo "🚀 Quick start:"
+echo "   # For declarative mode:"
+echo "   nix build .#homeConfigurations.declarative.activationPackage && ./result/activate"
+echo ""
+echo "   # For writable mode:"
+echo "   nix build .#homeConfigurations.writable.activationPackage && ./result/activate"
+echo "   ~/.local/bin/initialSetup.sh"