docs: add user documentation for core organizer concepts

Add three documentation pages:
- Leden vs Personen: explains the difference between platform members and event participants
- Crowd Types: full reference for the 7 person types with access matrix
- Diensten plannen: enhanced with 4-layer model, assignment strategies, and overbezetting

Also adds placeholder images to fix VitePress build and updates sidebar navigation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-04-14 18:30:23 +02:00
parent ed1eddd486
commit 624756e505
6 changed files with 319 additions and 7 deletions

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