docs(timeline): add Zeitstrahl visual specs (global Concept A, event editor)

Visual design specs for Milestone #14:
- zeitstrahl-global-concepts.html — A/B/C exploration of the global timeline
- zeitstrahl-final-spec.html — canonical Concept A (global + per-person Lebensweg)
- zeitstrahl-event-editor-spec.html — curator event editor + document quick-action

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-06-08 16:27:15 +02:00
parent e63eaadc33
commit ddb1ec4df8
3 changed files with 1870 additions and 0 deletions

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