Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
P0 user feedback: unstyled B/I/U/H2/List/1,2,3 buttons were not understandable for non-technical users.
- Toolbar buttons grouped by intent (text style | headings | lists | insert | advanced) with visual separators, hover states, consistent 30px hit targets
- Icons (PrimeIcons) for list/link/image/table/divider/code/embed; B/I/U keep their conventional letters but rendered in their own style (bold/italic/underline) as every mainstream editor does; every button gets a translated tooltip and aria-label (en/ru/hy)
- Code view toggle moved to the right edge, visually de-emphasized - it is the expert path, not a primary action
- Toolbar visually attaches to the editing surface (shared border, joined radius) so it reads as one control
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