Implement FeedPurchased event handling:
- Add migration for feed_inventory table
- Create FeedInventoryProjection to track purchases
- Create FeedService with purchase_feed method
- Calculate price_per_kg_cents from bag details
Purchases accumulate in inventory with:
- purchased_kg, given_kg, balance_kg tracking
- Last purchase price stored in cents
- Timestamps for last purchase/given
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implement AnimalTagged and AnimalTagEnded event handling:
- Add migration for tag_suggestions table
- Create TagProjection for tag intervals and suggestions
- Update EventAnimalsProjection to handle tag events
- Add add_tag() and end_tag() to AnimalService
Key behaviors:
- No-op idempotence (adding active tag or ending inactive tag)
- Updates live_animals_by_location.tags JSON array
- Tracks tag usage statistics in tag_suggestions
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add time-series tracking tables for animal location, tag, and attribute
history. Each interval represents a period when an animal had a specific
state, with open intervals (end_utc=NULL) for current state.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add database tables for animal tracking:
- animal_registry: main snapshot table with all animal attributes
- live_animals_by_location: denormalized view for fast roster queries
- animal_aliases: merge tracking for when animals are discovered to be same
Includes Pydantic models and comprehensive tests for all constraints.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Create migration for events, event_revisions, event_tombstones,
idempotency_nonces, and event_animals tables with ULID checks
and JSON validation. Add Pydantic models with field validators.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements Step 1.4: Creates migration for species, locations, products,
feed_types, and users tables with full CHECK constraints. Adds Pydantic
models with validation for all reference types including enums for
ProductUnit and UserRole.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
