Hartmut
a9107add7b
feat: unique icons for all admin navigation items
Replaced generic AdminIcon (gear) with distinct icons:
- Blueprints: document with lines
- Clients: building/office
- Countries: globe
- Org Units: layout/grid
- Util. Categories: tag
- Mgmt Levels: horizontal lines (hierarchy)
- Data Import: upload arrow
- Calc. Rules: calculator
- Users: people group
- System Roles: shield with checkmark
- Settings: detailed gear (distinct from AdminIcon)
- Webhooks: chain link
Existing unique icons kept: Broadcasts (megaphone), Activity Log (clock)
Co-Authored-By: claude-flow <ruv@ruv.net>