fix: resolve Team ID mismatch crash on macOS

- Add forceCodeSigning to ensure consistent signatures
- Re-sign entire app bundle after build to unify Team IDs
- Add electron-rebuild step to properly rebuild native modules

This fixes the 'different Team IDs' crash when launching the app.

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

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

Author: ishikawa-pro

.github/workflows/build-and-release.yml

@@ -38,11 +38,30 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y libnss3-dev libatk-bridge2.0-dev libdrm2 libxcomposite1 libxdamage1 libxrandr2 libgbm1 libxss1 libasound2-dev
           
+      - name: Rebuild native dependencies
+        run: npx electron-rebuild
+        
       - name: Build application
         run: npm run dist
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Fix code signing (macOS)
+        if: matrix.os == 'macos-latest'
+        run: |
+          # Re-sign all apps with consistent ad-hoc signature
+          for APP in dist/mac*/Git\ Diff\ Viewer.app; do
+            if [ -d "$APP" ]; then
+              echo "Re-signing $APP with ad-hoc signature..."
+              # Remove all existing signatures
+              find "$APP" -type f -perm +111 -exec codesign --remove-signature {} \; 2>/dev/null || true
+              # Sign with ad-hoc
+              codesign --force --deep --sign - "$APP"
+              # Verify
+              codesign --verify --deep --verbose "$APP"
+            fi
+          done
+          
       - name: Upload artifacts (macOS)
         if: matrix.os == 'macos-latest'
         uses: actions/upload-artifact@v4

electron-builder.json

@@ -16,6 +16,7 @@
   "npmRebuild": false,
   "buildDependenciesFromSource": true,
   "nodeGypRebuild": false,
+  "forceCodeSigning": true,
   "mac": {
     "category": "public.app-category.developer-tools",
     "target": [

package.json

@@ -1,6 +1,6 @@
 {
   "name": "diff-viewer",
-  "version": "0.1.13",
+  "version": "0.1.14",
   "description": "A rich Git diff viewer with syntax highlighting",
   "main": "build/electron/main.js",
   "homepage": "./",