refactor: migrate to monorepo structure with Docker, PocketBase, and e2e tests

- Reorganize into apps/, packages/, docs/, e2e/, pocketbase/ directories
- Add Dockerfiles for web, worker, and PocketBase services
- Add docker-compose.yml for local orchestration
- Add turbo.json for monorepo task management
- Add Playwright e2e test infrastructure
- Add PocketBase backend with migrations
- Remove Vite/Next.js/ESLint/PostCSS config files
- Update package.json with workspace dependencies
- Add .env.example and .dockerignore

packages/shared/src/index.ts

@@ -0,0 +1,17 @@
+// Schemas
+export * from './schemas/common';
+export * from './schemas/task';
+export * from './schemas/habit';
+export * from './schemas/project';
+export * from './schemas/milestone';
+export * from './schemas/note';
+export * from './schemas/report';
+export * from './schemas/canvas';
+export * from './schemas/agent';
+export * from './schemas/webhook';
+
+// Types
+export * from './types';
+
+// Constants
+export * from './constants';