Fix Cmd+K conflict and add custom app icon

- Changed AI Generator shortcut from Cmd+K to Cmd+I
- Cmd+K now only triggers Clear Screen
- Created custom terminal-style app icon with Python/PIL
- Updated build script to include icon in app bundle
- Updated all documentation with correct shortcuts
- New DMG with icon included (492K)

build.sh

@@ -39,6 +39,8 @@ cat > EnhancedTerminal.app/Contents/Info.plist << 'EOF'
     <string>en</string>
     <key>CFBundleExecutable</key>
     <string>EnhancedTerminal</string>
+    <key>CFBundleIconFile</key>
+    <string>AppIcon</string>
     <key>CFBundleIdentifier</key>
     <string>com.enhanced.terminal</string>
     <key>CFBundleInfoDictionaryVersion</key>
@@ -61,6 +63,12 @@ cat > EnhancedTerminal.app/Contents/Info.plist << 'EOF'
 </plist>
 EOF
 
+# Copy icon if it exists
+if [ -f "AppIcon.icns" ]; then
+    echo "🎨 Adding app icon..."
+    cp AppIcon.icns EnhancedTerminal.app/Contents/Resources/
+fi
+
 echo "✅ Build complete!"
 echo ""
 echo "To run the application:"