Implements the foundation for Skywatch Tail:

- Docker setup with docker-compose for containerized deployment
- Type-safe configuration using Zod with .env validation
- Pino logger with pretty printing for development
- DuckDB database with complete schema:
* labels table with auto-incrementing sequence
* posts table for hydrated post data
* profiles table for user account data
* blobs table for image/video metadata
- Repository pattern for all database entities
- Integration tests for all repositories (100% passing)

All Phase 1 deliverables complete and tested.

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

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