Add quarantine attribute removal to prevent security dialog

🔓 Security Dialog Prevention:
- Added xattr -dr com.apple.quarantine command to updater
- Removes quarantine attribute after copying app to /Applications
- Prevents 'Apple could not verify A6Cutter.app is free of malware' dialog
- Added xattr to runCommand function with full path /usr/bin/xattr

📱 Updater Improvements:
- Quarantine removal happens after app copy but before unmount
- Clear logging: '🔓 Odstraňuji quarantine atribut...' and '✅ Quarantine atribut odstraněn'
- Ensures smooth user experience without security warnings

This prevents the macOS security dialog that appears when running downloaded applications, making the update process seamless for users.

Author: devopsmariocom

A6Cutter/Info.plist

@@ -13,13 +13,13 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>v1.0.29-dev</string>
+	<string>v1.0.30-dev</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>88c991d</string>
+	<string>8e348e2</string>
 	<key>GitHash</key>
-	<string>88c991d4ba022cce994a5c1eae222ce1c11c050e</string>
+	<string>8e348e2abcf8fc736e788e862162fd00c41a5dd7</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>14.0</string>
 	<key>NSHumanReadableCopyright</key>

A6Cutter/UpdateDebugView.swift

@@ -390,6 +390,11 @@ struct UpdateDebugView: View {
         try await runCommand("cp", arguments: ["-R", appPath, "/Applications/"])
         addLogMessage("✅ Aplikace zkopírována", isError: false)
 
+        // Remove quarantine attribute to prevent security dialog
+        addLogMessage("🔓 Odstraňuji quarantine atribut...", isError: false)
+        try await runCommand("xattr", arguments: ["-dr", "com.apple.quarantine", targetPath])
+        addLogMessage("✅ Quarantine atribut odstraněn", isError: false)
+        
         // Unmount DMG
         addLogMessage("💿 Odmountovávám DMG...", isError: false)
         try await runCommand("hdiutil", arguments: ["detach", mountPoint, "-quiet"])
@@ -447,6 +452,8 @@ struct UpdateDebugView: View {
             commandPath = "/usr/bin/hdiutil"
         case "open":
             commandPath = "/usr/bin/open"
+        case "xattr":
+            commandPath = "/usr/bin/xattr"
         default:
             commandPath = "/usr/bin/\(command)"
         }