Add System One typed batch API and matching fine-tuning inputs

Add optional padding-aware batching with verified FP32 behavior

Reuse admitted input encodings without changing model outputs

Focus Lex evaluation on fine-tuned typed-decision models

Compare released Sol and Nox on the same Kai and Lex benchmarks

Adopt Apache 2.0 and public ungated access

Release Decision 1.0 Lex: typed decision specialist

initial commit