QTE — Quantum Series Encoder

Polylog AC (auto/mp/series), Bessel (J_n), QFT labels with [rail], Maclaurin helpers, caching, CLI.

Quick start

```bash pip install -r requirements.txt ./qte_cli.py --nq 6 --mode terms --label 'QFT[sin(2pix); N=64; a=0; b=1; ifft][rail]' ./qte_cli.py --value --label 'polylog(2, 1.1)'