Add --force-deploy and --skip-brew flags to setup script

Adds two new command-line flags to enhance setup script flexibility:
- --force-deploy: Passes -f flag to dotter deploy for forced deployment
- --skip-brew: Skips all Homebrew package installation steps

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

setup.sh

@@ -1,31 +1,52 @@
 #!/usr/bin/env bash
 
-set -e
+set -eo pipefail
 
 # Parse command line arguments
 RESET_CONFIG=false
-if [[ "$1" == "--reset" ]]; then
+FORCE_DEPLOY=false
+SKIP_BREW=false
+
+for arg in "$@"; do
+    case $arg in
+        --reset)
             RESET_CONFIG=true
             echo "Resetting configuration (will re-prompt for all variables)..."
-fi
+            ;;
+        --force-deploy)
+            FORCE_DEPLOY=true
+            echo "Force deployment mode enabled..."
+            ;;
+        --skip-brew)
+            SKIP_BREW=true
+            echo "Skipping Homebrew package installation..."
+            ;;
+        *)
+            echo "Unknown option: $arg"
+            echo "Usage: $0 [--reset] [--force-deploy] [--skip-brew]"
+            exit 1
+            ;;
+    esac
+done
 
 echo "Setting up dotfiles environment..."
 
 # Detect OS
 OS="$(uname -s)"
 
-# Check if Homebrew is installed
-if ! command -v brew &> /dev/null; then
+if [[ "$SKIP_BREW" == false ]]; then
+    # Check if Homebrew is installed
+    if ! command -v brew &> /dev/null; then
         echo "Homebrew is not installed. Please install it first:"
         echo "https://brew.sh"
         exit 1
-fi
+    fi
 
-echo "Updating Homebrew..."
-brew update
+    echo "Updating Homebrew..."
+    brew update
 
-# Install packages (available on both macOS and Linux)
-PACKAGES=(
+    # Install packages (available on both macOS and Linux)
+    PACKAGES=(
         dotter
         fish
         dust
@@ -43,20 +64,20 @@ PACKAGES=(
         zoxide
         zellij
         p7zip
-)
+    )
 
-echo "Installing packages..."
-for package in "${PACKAGES[@]}"; do
+    echo "Installing packages..."
+    for package in "${PACKAGES[@]}"; do
         if brew list "$package" &>/dev/null; then
             echo "✓ $package already installed"
         else
             echo "Installing $package..."
             brew install "$package"
         fi
-done
+    done
 
-# Install casks on macOS only
-if [[ "$OS" == "Darwin" ]]; then
+    # Install casks on macOS only
+    if [[ "$OS" == "Darwin" ]]; then
         echo "Installing macOS-specific casks..."
 
         CASKS=(
@@ -72,8 +93,9 @@ if [[ "$OS" == "Darwin" ]]; then
                 brew install --cask "$cask"
             fi
         done
-else
+    else
         echo "Skipping macOS-specific casks (not on macOS)"
+    fi
 fi
 
 # Set up GitHub CLI authentication
@@ -153,10 +175,18 @@ EOF
 # Deploy dotfiles
 echo ""
 echo "Deploying dotfiles..."
-if dotter deploy -v; then
-    echo "✓ Dotfiles deployed successfully!"
+if [[ "$FORCE_DEPLOY" == true ]]; then
+    if dotter deploy -f -v; then
+        echo "✓ Dotfiles deployed successfully (forced)!"
+    else
+        echo "⚠ Dotter deployment failed."
+    fi
 else
+    if dotter deploy -v; then
+        echo "✓ Dotfiles deployed successfully!"
+    else
         echo "⚠ Dotter deployment failed. You may need to run 'dotter deploy -f' to force deployment."
+    fi
 fi
 
 echo ""
@@ -164,6 +194,8 @@ echo "✓ Setup complete!"
 echo ""
 echo "Configuration saved to: $USER_VARS_FILE"
 echo "To reconfigure, run: ./setup.sh --reset"
+echo "To force deployment, run: ./setup.sh --force-deploy"
+echo "To skip Homebrew packages, run: ./setup.sh --skip-brew"
 echo ""
 echo "Next steps:"
 echo "  1. Consider setting fish as your default shell: chsh -s \$(which fish)"