Move planner financial model from client-side JS to server-side Python
(calculator.py + /planner/calculate endpoint). Add full test coverage:
227 calculator tests and 371 billing tests covering SQL helpers,
webhooks, routes, and subscription gating with Hypothesis fuzzing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Switch from Outfit/red accent to Inter/Electric Blue (Court Tech Proposal 1).
Updates Pico CSS overrides, planner CSS variables, Chart.js colors, and
Google Fonts. Deep Navy #0F172A backgrounds, Electric Blue #3B82F6 accent,
Vibrant Green #10B981 success, Soft White #F8FAFC headings.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Update from materia_saas_boilerplate template with payment_provider=lemonsqueezy.
Adds full LemonSqueezy billing routes (checkout, webhooks, subscription management),
HMAC webhook verification, subscriptions/API keys schema, and removes Caddy in favor
of Nginx Proxy Manager.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
