Refine Storybook shell layout

Add Storybook header prototype

Запрос на слияние 'codex/feature/0013' (#7) из codex/feature/0013 в master

Polish markdown preview tables and links

Fix Mermaid block scrolling behavior

Add Mermaid support to markdown preview

Refine markdown preview styling

Polish markdown preview tables and links

Fix Mermaid block scrolling behavior

Add Mermaid support to markdown preview

Refine markdown preview styling

Polish markdown preview theme

Add basic markdown preview for issues

chore: stop tracking .ishak task files

refine(macos): polish sidebar activation and action bar ui

Refine agent workflow slides

Refine presentation structure and visuals

Presentation v2

Add backgroud