09e0fd8fa2
Adds eslint-plugin-boundaries with one element type per Tier-1 domain and an explicit allow-list encoding the architectural dependency graph: - document may import from: shared, person, tag, ocr, activity, conversation - geschichte may import from: shared, person, document - ocr may import from: shared, document - activity may import from: shared, notification - all others (person, tag, user, notification, conversation): shared only - routes may import from any domain Default is 'disallow', so any unlisted cross-domain import is an error. Two eslint-disable-next-line comments remain in shared/discussion where person-domain helpers (getInitials, formatLifeDateRange) are needed to render participant metadata; moving them to shared would lose the person-type context. Closes #410 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>