[Add] AuraKit — Sonnet Amplified fullstack engine

[smorky850612]

AuraKit v6: https://github.com/smorky850612/Aurakit | npx @smorky85/aurakit
Sonnet Amplified fullstack engine with 34 modes, SEC-01~15 OWASP security, 13 runtime hooks, 75% token reduction.