feat: add VS Code installation script following spilled coffee principle

setup.sh

@@ -569,6 +569,20 @@ else
 fi
 echo -e "${DIVIDER}"
 
+# VS Code setup (for read-only code browsing, complementing tmux + Claude Code workflow)
+echo "Setting up VS Code..."
+if [[ -f "$DOT_DEN/utils/install-vscode.sh" ]]; then
+    source "$DOT_DEN/utils/install-vscode.sh"
+    install_vscode || {
+        echo -e "${YELLOW}Failed to setup VS Code. You can install it manually later.${NC}"
+        echo "VS Code is optional - used for read-only code browsing alongside the primary tmux workflow."
+    }
+else
+    echo -e "${YELLOW}VS Code installation script not found at $DOT_DEN/utils/install-vscode.sh${NC}"
+    echo -e "${BLUE}VS Code is optional and can be installed manually if needed for code browsing.${NC}"
+fi
+echo -e "${DIVIDER}"
+
 # urlview setup (for tmux URL extraction)
 echo "Setting up urlview (tmux URL extraction utility)..."
 if [[ -f "$DOT_DEN/utils/install-urlview.sh" ]]; then

utils/install-vscode.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+# VS Code Installation Utility
+# Automated installation following the spilled coffee principle
+
+# Source common logging functions
+if [[ -n "${BASH_SOURCE[0]:-}" ]]; then
+    SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+else
+    SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+fi
+source "${SCRIPT_DIR}/logging.sh"
+
+install_vscode() {
+    log_info "Setting up VS Code..."
+
+    # Check if VS Code is already installed
+    if command -v code &> /dev/null; then
+        CURRENT_VERSION=$(code --version 2>/dev/null | head -n1)
+        log_success "Already installed: $CURRENT_VERSION"
+        return 0
+    fi
+
+    log_info "Installing VS Code..."
+
+    if [[ "$OSTYPE" == "darwin"* ]]; then
+        # macOS installation via Homebrew
+        if command -v brew &> /dev/null; then
+            log_info "Using Homebrew..."
+            if brew install --cask visual-studio-code; then
+                log_success "Installed via Homebrew"
+            else
+                log_error "Homebrew install failed"
+                return 1
+            fi
+        else
+            log_error "Homebrew not found"
+            return 1
+        fi
+
+    elif [[ "$OSTYPE" == "linux-gnu"* ]]; then
+        # Linux installation using official Microsoft repository
+        if command -v apt &> /dev/null; then
+            # Ubuntu/Debian/Linux Mint
+            log_info "Using apt with Microsoft repository..."
+
+            # Install dependencies
+            sudo apt-get update
+            sudo apt-get install -y wget gpg apt-transport-https
+
+            # Add Microsoft GPG key
+            wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > packages.microsoft.gpg
+            sudo install -D -o root -g root -m 644 packages.microsoft.gpg /etc/apt/keyrings/packages.microsoft.gpg
+
+            # Add VS Code repository
+            echo "deb [arch=amd64,arm64,armhf signed-by=/etc/apt/keyrings/packages.microsoft.gpg] https://packages.microsoft.com/repos/code stable main" | \
+                sudo tee /etc/apt/sources.list.d/vscode.list > /dev/null
+
+            # Clean up temporary GPG file
+            rm -f packages.microsoft.gpg
+
+            # Update and install VS Code
+            sudo apt-get update
+            if sudo apt-get install -y code; then
+                log_success "Installed via apt"
+            else
+                log_error "apt install failed"
+                return 1
+            fi
+
+        elif command -v pacman &> /dev/null; then
+            # Arch Linux
+            log_info "Using pacman..."
+            if sudo pacman -S --noconfirm code; then
+                log_success "Installed via pacman"
+            else
+                log_error "pacman install failed"
+                return 1
+            fi
+
+        elif command -v dnf &> /dev/null; then
+            # Fedora/RHEL
+            log_info "Using dnf with Microsoft repository..."
+
+            # Import Microsoft GPG key
+            sudo rpm --import https://packages.microsoft.com/keys/microsoft.asc
+
+            # Add VS Code repository
+            echo -e "[code]\nname=Visual Studio Code\nbaseurl=https://packages.microsoft.com/yumrepos/vscode\nenabled=1\ngpgcheck=1\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc" | \
+                sudo tee /etc/yum.repos.d/vscode.repo > /dev/null
+
+            # Install VS Code
+            if sudo dnf install -y code; then
+                log_success "Installed via dnf"
+            else
+                log_error "dnf install failed"
+                return 1
+            fi
+
+        elif command -v snap &> /dev/null; then
+            # Fallback to Snap if available
+            log_info "Using snap..."
+            if sudo snap install code --classic; then
+                log_success "Installed via snap"
+            else
+                log_error "snap install failed"
+                return 1
+            fi
+
+        else
+            log_error "No supported package manager found"
+            return 1
+        fi
+    else
+        log_error "Unsupported operating system: $OSTYPE"
+        return 1
+    fi
+
+    # Verify installation
+    if command -v code &> /dev/null; then
+        NEW_VERSION=$(code --version 2>/dev/null | head -n1)
+        log_success "VS Code installed successfully: $NEW_VERSION"
+        log_info "You can now use 'code .' to open VS Code in the current directory"
+        return 0
+    else
+        log_error "Installation verification failed"
+        return 1
+    fi
+}
+
+# Run installation if script is executed directly
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+    install_vscode
+fi