Changed approach per maintainer feedback - instead of caching signal values,
just add isInt() check before accessing config_["signal"].asInt() in refresh()
methods. This is simpler and more minimal.
Co-authored-by: Alexays <13947260+Alexays@users.noreply.github.com>
Cache signal value during module construction to avoid accessing JSON config
in signal handler context. This prevents crashes when signal field is missing
or not an integer type.
- Custom module: Cache signal_ value in constructor
- Image module: Cache signal_ value in constructor
- Both modules: Use cached value in refresh() method
Co-authored-by: Alexays <13947260+Alexays@users.noreply.github.com>
