refactor: centralise all magic numbers into config.py driven by env vars

feat: bi-temporal supersession, scope isolation, configurable threshold, benchmark adapter

Rebrand to Kaal — rename from Chronos OS, add Logo component with serif seal design, swap all Hexagon icons for Logo

Update pricing to premium B2B SaaS tiers: /mo Builder and /mo Scale

Migrate to Vercel Next.js UI Frontend, prune 10x SVO model overhead payload

10x Code Quality: Fix crash bug, cache LLM singletons, optimize batch inserts, purge stale references

Initial commit for Chronos OS MVP