USB SAM Reader (ACR39U-style passthrough) - #42

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@v3, actions/checkout@v3, actions/setup-python@v3, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

unused variable 'intmax_max' [-Wunused-variable]

array subscript 0 is outside array bounds of 'intmax_t[1]' {aka 'long long int[1]'} [-Warray-bounds]

'INTEGER_map_enum2value' defined but not used [-Wunused-function]

'INTEGER_st_prealloc' defined but not used [-Wunused-function]