fix: improve macOS app signing to avoid Gatekeeper issues

- Simplify codesign process following Alacritty's approach
- Add electron-builder config for macOS development builds
- Bump version to 0.1.5

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

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

Author: ishikawa-pro

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

@@ -48,18 +48,13 @@ jobs:
           APP_PATH=$(find dist -name "*.app" -type d | head -1)
           if [ -n "$APP_PATH" ]; then
             echo "Applying ad hoc signature to: $APP_PATH"
-            # Sign all frameworks and helpers first
-            find "$APP_PATH" -name "*.framework" -o -name "*.app" | while read framework; do
-              echo "Signing: $framework"
-              codesign --remove-signature "$framework" 2>/dev/null || true
-              codesign --force --sign - "$framework" || echo "Failed to sign: $framework"
-            done
-            # Sign the main app bundle
-            codesign --remove-signature "$APP_PATH" || true
+            # Remove existing signature
+            codesign --remove-signature "$APP_PATH"
+            # Apply new signature with deep option
             codesign --force --deep --sign - "$APP_PATH"
             echo "Ad hoc signature applied successfully"
             # Verify signature
-            codesign --verify --verbose "$APP_PATH" || echo "Signature verification failed"
+            codesign --verify --verbose "$APP_PATH"
           else
             echo "No .app bundle found in dist directory"
           fi

electron-builder.json

@@ -22,7 +22,11 @@
     "icon": "logo.png",
     "binaries": [
       "cli.js"
-    ]
+    ],
+    "hardenedRuntime": false,
+    "gatekeeperAssess": false,
+    "identity": null,
+    "type": "development"
   },
   "win": {
     "target": "nsis",