v1.0.0

Initial public release of StackVitals — a self-hosted, single-owner operations dashboard
that surfaces uptime, deploy health, provider status, month-to-date cloud cost, and AI/CI
usage for a handful of personal web projects, without copying raw app data out of the
source projects.

Added

• Vite + React + TypeScript frontend that reads pre-aggregated rows from Supabase and renders
  deploy health, uptime, provider status, domain health, usage roll-ups, collector
  diagnostics, and month-to-date vs. last-month cost across Detail / Collectors / Usage /
  Costs tabs.
• Node collector pipeline built on a single ProviderAdapter contract, run on a schedule
  from GitHub Actions, writing append-only snapshots back to Supabase.
• Collector adapters: HTTP health, AWS Amplify deploy status, AWS Cost Explorer, Supabase
  project health, watched-app Supabase aggregates (count-only RPC — never raw records),
  Resend domain verification, OpenAI usage, GitHub Actions usage, and Cloudflare domains.
• Config-driven, à-la-carte setup: adapters activate only when their credentials are present,
  and projects.config.json resolves ${ENV_VAR} placeholders so no secrets or real
  resource ids are committed. Cloudflare domain groups may omit projectSlug to stay
  account-level.
• Single-owner access model: a comma-separated email allowlist gates the frontend and
  Supabase RLS restricts reads to allow-listed accounts.
• Demo mode (VITE_DEMO_MODE) with fictional data and a screenshot capture script for
  auth-free public screenshots.
• CI workflow (tests, lint, build) and a scheduled collector workflow, both writing a summary
  to the GitHub Actions job summary.
• Self-hosting guide and contributing guide (including how to add a new adapter).