Need a GDExtension library that triggers various native errors

[limbonaut]

We need a GDExtension library that triggers various native errors (segfaults, stack overflows, null pointer dereferences, abort, etc.) for testing the Sentry SDK's crash reporting. It should be usable in both sentry-godot and sentry-demos/godot.

Currently, the SDK includes a hidden method that intentionally crashes the app. Although it's hidden from docs, it's still callable from GDScript. Shipping crash-triggering code in a production SDK is unnecessary and could raise concerns in security audits. Moving this into a separate library (godot-kaboom) keeps the SDK clean and provides a dedicated tool for crash testing in our test project and in any current and future demos.

[linear]

GODOT-155

[limbonaut]

I need this especially for WASM, as access violation implementation we currently have is not useful for testing WASM errors (doesn't trigger errors).

• feat: Support Web platform #488

[limbonaut]

Started here:

• https://github.com/limbonaut/godot-kaboom