浅念 91c85e196a feat(viewer,ui04): E05 realtime hearts + effect-demo alignment (initial offset, heart params, decode gate, bidirectional manual scroll) ...

- reactions.ts pure fns: delta->hearts sampling, burstId dedupe (TTL/capacity), pending-visible cache (5s/50), 250ms emission throttle with merge
- useEmbedReactions: read-only RealtimeClient subscription on album.publicToken (no viewer-page side effects, A15), rebind teardown, 10s grace disconnect, no fake bubbles on WS failure
- ReactionLayer: demo-frozen heart effect (12/16/20 sizes, two colors, 110px rise, 1.6s ease-out, 300ms stagger, max 8, drop-shadow) in unscoped block (created elements lack scoped hash)
- demo alignment: initial offset 32px, decode+500ms startup gate, 1:1 drag, arrows +-40, focus-tip, bidirectional manual scroll (manualScroll), loader handle 100x44 exact styles, <=599px offset default 12
- tests: +8 reactions unit (244 viewer), e2e E05: real cross-context like -> heart on correct photo (EMB-A09), zero likes/visits submission (EMB-A15), 16s hearts recording

Co-Authored-By: Claude Code <noreply@anthropic.com>

2026-09-22 17:38:02 +08:00

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