Introduce external social interactions for Blobbi companions. Other users
can feed, play, clean, and medicate a Blobbi they don't own via kind 1124
events. The owner's canonical 31124 state absorbs these interactions
through a checkpoint-based consolidation system with auto-sync on page load.
Key additions:
- Kind 1124 event schema with validation, parsing, and deterministic sort
- Social projection pipeline (read-only stat overlay from pending interactions)
- Owner-side consolidation into canonical state with checkpoint advancement
- Auto-sync hook (useCanonicalSync) triggered when owner opens /blobbi
- Social permission toggle (open/closed tag on 31124)
- Interaction UI: popover with item carousel on feed cards, detail pages,
and the owner dashboard action bar
- Interaction reactions: facial expressions, sparkles, bubbles, floating
hearts with phase-based animation system
- Activity tab showing interaction history with caretaker attribution
- BlobbiSocialActions component with egg gating and cooldown logic
- NIP.md documentation for the new kind
filemon
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