Deepen the structured mood-tag taxonomy and close a bulk-ingest data-loss
gap the iOS client has been blocked on.
Taxonomy (migration 0118, additive + idempotent, mirrors the 0101 seed):
- New `hobbies` category: movies, reading, gaming, music, outdoors.
- Nutrition-detail tags appended to the existing `health` category:
fast_food, no_sweets, big_meal (alongside the original ate_well).
- Lucide icon names seeded per row and registered in the client icon
map; labelKeys added for every new category and tag across all six
locales.
Bulk tagKeys (data-loss fix):
- `POST /api/mood-entries/bulk` previously Zod-stripped `tagKeys`, so
structured taxonomy links were silently dropped on the adopt-on-pair
backfill while the single-entry route persisted them correctly. Add
`tagKeys` to the bulk entry schema and write the `MoodEntryTagLink`
rows per entry via the shared `createTagLinks` helper — unknown keys
are dropped against the catalog, the join insert skips duplicates so a
re-posted batch stays idempotent.
Tests cover the bulk tagKeys round-trip (links created, unknown keys
ignored, over-long arrays rejected at the schema boundary) at the unit
level and against real Postgres.