v2.2.0 — Docker, motion, Tailwind v4, deps reduction

Infrastructure

• Docker dev environment: Dockerfile (oven/bun:1) + docker-compose.yaml with PostgreSQL 16, healthcheck, persistent volume, auto-init migrations, watch mode
• Plain git hooks in .githooks/ (no Husky)

Dependency reductions

• framer-motion → motion (lighter package, same API)
• concurrently → shell & backgrounding
• clsx + tailwind-merge → inline cn() helper
• react-helmet-async → custom useMeta hook
• react-confetti → custom Confetti component using motion
• class-variance-authority, lint-staged, caniuse-lite, terser, autoprefixer — removed

Tailwind v4

• Removed legacy tailwind.config.js — all theme in src/index.css @theme
• Removed autoprefixer (handled by @tailwindcss/postcss)

Documentation

• All markdown files compacted to plain language
• docs/ migrated to GitHub Wiki (template.wiki.git)
• Removed religious quotes from CODE_OF_CONDUCT.md, CONTRIBUTING.md, README.md

Other

• Renamed generate-links-example.js → generate-links.js
• Fixed repository URL in CONTRIBUTING.md + package.json
• vitest + @vitest/coverage-v8 kept (needed for vi.mock('pg') compatibility)