📦 Set up Storybook stories for all UI components

[jobbykings]

Summary

The Storybook config exists (.storybook/) but most components lack stories, making it hard to develop and review UI in isolation.

Tasks

• Create stories for all components in src/components/
• Add controls for all props
• Add accessibility addon
• Deploy Storybook to GitHub Pages

Acceptance Criteria

• Every component has at least one story
• Storybook deploys automatically on merge to main