Apple Silicon: pthread_jit_write_protect_np crash with hardened runtime and pty4j-unix-spawn-helper

## Issue Description

PTY4J 0.13.10-1 causes crashes on Apple Silicon (ARM64) macOS when used with hardened runtime code signing. The crash occurs during JVM initialization with `pthread_jit_write_protect_np` and `EXC_BREAKPOINT (SIGTRAP)`.

## Environment
- **macOS Version**: 15.5 (24F74)
- **Hardware**: Apple Silicon (ARM64)
- **PTY4J Version**: 0.13.10-1
- **Java Version**: Amazon Corretto 22 ARM64
- **Code Signing**: Developer ID with hardened runtime

## Crash Details

**Error Type**: `EXC_BREAKPOINT (SIGTRAP)` - Apple Mobile File Integrity (AMFI) fatal report type 309
**Stack Trace**: Crash occurs in `pthread_jit_write_protect_np` during `Threads::create_vm()` JVM initialization
**Root Cause**: The `pty4j-unix-spawn-helper` binary is incompatible with Apple Silicon W^X (Write XOR Execute) memory protection under hardened runtime

## Steps to Reproduce

1. Create a macOS app bundle using PTY4J 0.13.10-1
2. Sign the app with Developer ID and hardened runtime entitlements
3. Include these entitlements (standard for Compose Desktop apps):
```xml
com.apple.security.cs.allow-jit

com.apple.security.cs.allow-unsigned-executable-memory

com.apple.security.cs.disable-library-validation

```
4. Launch the app on Apple Silicon macOS
5. App crashes immediately with `pthread_jit_write_protect_np` error

## Expected Behavior
App should launch without crashing, as it does in development mode (without hardened runtime).

## Actual Behavior
Immediate crash with SIGTRAP during JVM initialization.

## Workaround Found
The issue can be resolved by:
1. Removing `pty4j-unix-spawn-helper` binaries from the PTY4J jar
2. Using only `libpty.dylib` (similar to IntelliJ IDEA's approach)

This suggests the spawn helper binary is the specific component incompatible with Apple Silicon hardened runtime.

## Additional Context

- **Development Mode**: Works perfectly with `./gradlew run` (no hardened runtime)
- **IntelliJ IDEA**: Works on Apple Silicon because it uses only `libpty.dylib`, not spawn helper
- **PTY4J 0.12.13**: Did not have this issue (no spawn helper binary)
- **PTY4J 0.13.10-1**: Introduced `pty4j-unix-spawn-helper` which causes the crashes

## Question
Is there a way to make `pty4j-unix-spawn-helper` compatible with Apple Silicon hardened runtime, or should apps exclude it and use only `libpty.dylib` on Apple Silicon?

This affects any Compose Desktop or JavaFX application using PTY4J that needs to be distributed through the Mac App Store or signed with Developer ID.