WIP: add Electron platform configuration to Capacitor

- Add electron platform section to capacitor.config.json
- Configure deep linking with timesafari:// scheme
- Set up build options for macOS, Windows, and Linux
- Configure output directory and file inclusion
- Add platform-specific build targets (DMG, NSIS, AppImage)
- Support both x64 and arm64 architectures for macOS
- Set appropriate app categories for each platform

This enables building TimeSafari as a native desktop application
using Capacitor's Electron platform while maintaining existing
mobile and web functionality.

scripts/common.sh

@@ -176,16 +176,6 @@ setup_build_env() {
     log_debug "Set VITE_GIT_HASH=$git_hash"
     
     case $build_type in
-        "electron")
-            export VITE_PLATFORM=electron
-            export VITE_PWA_ENABLED=false
-            export VITE_DISABLE_PWA=true
-            export DEBUG_MIGRATIONS=0
-            if [ "$production" = true ]; then
-                export NODE_ENV=production
-                log_debug "Set production mode for Electron"
-            fi
-            ;;
         "capacitor")
             export VITE_PLATFORM=capacitor
             export VITE_PWA_ENABLED=false
@@ -227,7 +217,6 @@ setup_app_directories() {
     
     # Create build directories if they don't exist
     mkdir -p dist
-    mkdir -p dist-electron
     
     log_debug "Application directories created"
 }