build(packaging): set up multi-platform packaging and CI/CD

- Add GitHub Actions workflows for CI and releases
- Create icon generation script and SVG source
- Configure electron-builder for macOS, Windows, Linux
- Add macOS entitlements for code signing
- Add Linux post-install/remove scripts
- Enhance package.json with publishing scripts
- Add artifact naming convention

scripts/generate-icons.sh

@@ -0,0 +1,111 @@
+#!/bin/bash
+
+# Icon Generation Script
+# Generates app icons for macOS, Windows, and Linux from SVG source
+#
+# Prerequisites:
+#   - macOS: brew install imagemagick librsvg
+#   - Linux: apt install imagemagick librsvg2-bin
+#   - Windows: Install ImageMagick
+#
+# Usage: ./scripts/generate-icons.sh
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+ICONS_DIR="$PROJECT_DIR/resources/icons"
+SVG_SOURCE="$ICONS_DIR/icon.svg"
+
+echo "🎨 Generating ClawX icons..."
+
+# Check if SVG source exists
+if [ ! -f "$SVG_SOURCE" ]; then
+    echo "❌ SVG source not found: $SVG_SOURCE"
+    exit 1
+fi
+
+# Check for required tools
+if ! command -v convert &> /dev/null; then
+    echo "❌ ImageMagick not found. Please install it:"
+    echo "   macOS: brew install imagemagick"
+    echo "   Linux: apt install imagemagick"
+    exit 1
+fi
+
+if ! command -v rsvg-convert &> /dev/null; then
+    echo "❌ rsvg-convert not found. Please install it:"
+    echo "   macOS: brew install librsvg"
+    echo "   Linux: apt install librsvg2-bin"
+    exit 1
+fi
+
+# Create temp directory
+TEMP_DIR=$(mktemp -d)
+trap "rm -rf $TEMP_DIR" EXIT
+
+echo "📁 Using temp directory: $TEMP_DIR"
+
+# Generate PNG files at various sizes
+SIZES=(16 32 64 128 256 512 1024)
+
+for SIZE in "${SIZES[@]}"; do
+    echo "  Generating ${SIZE}x${SIZE} PNG..."
+    rsvg-convert -w $SIZE -h $SIZE "$SVG_SOURCE" -o "$TEMP_DIR/icon_${SIZE}.png"
+done
+
+# ============ macOS (.icns) ============
+echo "🍎 Generating macOS .icns..."
+
+ICONSET_DIR="$TEMP_DIR/ClawX.iconset"
+mkdir -p "$ICONSET_DIR"
+
+# macOS iconset requires specific file names
+cp "$TEMP_DIR/icon_16.png" "$ICONSET_DIR/icon_16x16.png"
+cp "$TEMP_DIR/icon_32.png" "$ICONSET_DIR/icon_16x16@2x.png"
+cp "$TEMP_DIR/icon_32.png" "$ICONSET_DIR/icon_32x32.png"
+cp "$TEMP_DIR/icon_64.png" "$ICONSET_DIR/icon_32x32@2x.png"
+cp "$TEMP_DIR/icon_128.png" "$ICONSET_DIR/icon_128x128.png"
+cp "$TEMP_DIR/icon_256.png" "$ICONSET_DIR/icon_128x128@2x.png"
+cp "$TEMP_DIR/icon_256.png" "$ICONSET_DIR/icon_256x256.png"
+cp "$TEMP_DIR/icon_512.png" "$ICONSET_DIR/icon_256x256@2x.png"
+cp "$TEMP_DIR/icon_512.png" "$ICONSET_DIR/icon_512x512.png"
+cp "$TEMP_DIR/icon_1024.png" "$ICONSET_DIR/icon_512x512@2x.png"
+
+if command -v iconutil &> /dev/null; then
+    iconutil -c icns -o "$ICONS_DIR/icon.icns" "$ICONSET_DIR"
+    echo "  ✅ Created icon.icns"
+else
+    echo "  ⚠️ iconutil not found (macOS only). Skipping .icns generation."
+fi
+
+# ============ Windows (.ico) ============
+echo "🪟 Generating Windows .ico..."
+
+# Windows ICO typically includes 16, 32, 48, 64, 128, 256
+convert "$TEMP_DIR/icon_16.png" \
+        "$TEMP_DIR/icon_32.png" \
+        "$TEMP_DIR/icon_64.png" \
+        "$TEMP_DIR/icon_128.png" \
+        "$TEMP_DIR/icon_256.png" \
+        "$ICONS_DIR/icon.ico"
+echo "  ✅ Created icon.ico"
+
+# ============ Linux (PNG set) ============
+echo "🐧 Generating Linux PNG icons..."
+
+LINUX_SIZES=(16 32 48 64 128 256 512)
+for SIZE in "${LINUX_SIZES[@]}"; do
+    cp "$TEMP_DIR/icon_${SIZE}.png" "$ICONS_DIR/${SIZE}x${SIZE}.png" 2>/dev/null || \
+    rsvg-convert -w $SIZE -h $SIZE "$SVG_SOURCE" -o "$ICONS_DIR/${SIZE}x${SIZE}.png"
+done
+echo "  ✅ Created Linux PNG icons"
+
+# ============ Copy main icon ============
+cp "$TEMP_DIR/icon_512.png" "$ICONS_DIR/icon.png"
+echo "  ✅ Created icon.png (512x512)"
+
+echo ""
+echo "✅ Icon generation complete!"
+echo "   Generated files in: $ICONS_DIR"
+ls -la "$ICONS_DIR"