Tabby 1.0.232 crashes on launch on macOS 26.4 ARM64 with "Code Signature Invalid"

**Describe the problem**: After installing Tabby 1.0.232 from the official ARM64 `.dmg` release on macOS 26.4 (Apple Silicon), the application immediately crashes on launch. The crash report contains: ``` Termination Reason: Namespace CODESIGNING, Code 2, Invalid Page EXC_BAD_ACCESS (SIGKILL (Code Signature Invalid)) ``` The crash happens inside Electron Framework during startup. The app only starts successfully after manually re-signing it with: `sudo codesign --force --deep --sign - /Applications/Tabby.app` This suggests a signing/notarization compatibility issue with newer macOS versions. **To Reproduce**: 1. Download `tabby-1.0.232-macos-arm64.dmg` 2. Install Tabby into `/Applications` 3. Remove quarantine attributes: sudo xattr -rd com.apple.quarantine /Applications/Tabby.app 4. Launch Tabby 5. App crashes immediately **Environment**: - Tabby version: 1.0.232 - macOS: 26.4 (25E246) - Hardware: Apple Silicon (Mac14,5) - Architecture: ARM64 **Workaround**: Running: `sudo codesign --force --deep --sign - /Applications/Tabby.app` makes the app launch successfully.