feat(web): graph SSE live layer — glow/pulse on touched nodes (TASK-1736) - #704
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…736) The graph now feels alive while agents work: item events from the workspace SSE stream flash the touched node toward white and fade it back over 45s (a lazy 2s prune interval animates the decay and stops itself when idle). Structural events (created/archived/restored) and item_updated fold into one trailing-debounced refetch (1.5s) through the existing loadGraph stale-token path; comment_created is glow-only. New items arrive glowing via a pending-uuid stash resolved when the refetch lands. Pulse composes before focus-mode dimming so touched nodes still flicker subtly in the dimmed crowd. Selection clears when the selected item leaves the payload (archived under focus mode). Events correlate via a uuid→ref bridge rebuilt per payload — the graph endpoint now emits each node's item UUID alongside the ref. Parent: PLAN-1730.
items_bulk_updated and replay-buffer gaps route through onSyncRequired, not onItemEvent — the graph stayed stale after bulk archive/move/assign until the next single-item event. Fold both into the existing debounced refetch.
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Summary
PLAN-1730 phase 4, first slice — the ambient-liveness layer:
GraphNodenow emitsid(UUID) and the page keeps a uuid→ref bridge per payload.Context
Implements
TASK-1736underPLAN-1730. Leaves TASK-1737 (blocker tracing) and TASK-1738 (layout tuning) to close the plan.Test plan
pad item updatelight up the graph)