net.anisota.settings

User settings for the Anisota app, synced across devices via ATProto. The collection holds one record per category, keyed by category name: 'appearance', 'behavior', 'notifications', 'chat', 'moderation', 'controls', 'observatory', 'keyboard', 'atmosphere', 'posting'. A special 'index' rkey holds a map of category names to their latest updatedAt timestamp so clients can fetch only categories whose state has drifted. The legacy 'settings' rkey is the deprecated v27 monolithic record; clients run a one-time migration that splits it into the per-category records (atomically via com.atproto.repo.applyWrites) and deletes it. Each category's full shape is defined and validated client-side via scripts/validate-settings-lexicons.js — this lexicon only enforces the universal metadata fields so new per-category fields can ship without a lexicon migration.