Create upload-file.ts use case with factory pattern supporting dedup, file type detection, size validation, and chunked/single storage strategies.
Create get-file.ts use case supporting redirect, chunked, and archive-entry retrieval strategies.
Create authenticate.ts use case with login, logout, and me operations.
All use cases use dependency injection and return typed DTOs.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude