feat: add complete monorepo structure and all packages

This completes the initial monorepo setup with all packages and configuration.

Packages added:
- @tpmjs/ui - React component library with .ts-only components
- @tpmjs/utils - Utility functions (cn, format)
- @tpmjs/types - TypeScript types and Zod schemas
- @tpmjs/env - Environment variable validation
- @tpmjs/test - Shared Vitest configuration
- @tpmjs/mocks - MSW mock server
- @tpmjs/config - Shared configurations (Biome, ESLint, Tailwind, TypeScript)

Applications added:
- @tpmjs/web - Next.js 16 App Router

Infrastructure:
- Turborepo configuration with build pipeline
- pnpm workspace setup
- GitHub Actions CI/CD
- Changesets for versioning
- Lefthook pre-commit hooks
- VSCode workspace settings
- Comprehensive documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,44 @@
+# dependencies
+node_modules
+.pnp
+.pnp.js
+
+# testing
+coverage
+.nyc_output
+
+# next.js
+.next/
+out/
+build
+dist
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# local env files
+.env*.local
+.env
+
+# turbo
+.turbo
+
+# typescript
+*.tsbuildinfo
+
+# ide
+.idea
+
+# storybook
+storybook-static
+
+# changesets
+.changeset/*.md
+!.changeset/README.md