Comprehensive UX design document covering: current state analysis, design principles (minimal/functional/AI-first), navigation restructuring plan, new dashboard design, page-level AI enhancements, and phased migration strategy.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
