📝 docs(stories): add detailed user stories for all epics
- add epic 1 stories: project initialization, development environment, code quality tools
- add epic 2 stories: database design, authentication, session management, security middleware, error handling
- add epic 3 stories: user CRUD, data filtering, user list UI, user form UI, user status management
- add epic 4 stories: core pages, layout system, UI component integration, state management, routing system
- add epic 5 stories: test framework, Docker environment, code quality tools, deployment config, monitoring docs
- each story includes role, goal, and detailed acceptance criteria