The scene-9 embedding handler appends to a `points` array without
ever capping. The producer republishes its (stable, deterministic)
point set on a cycle so reconnecting browsers eventually see the
scatter; each cycle pushes the same N points again and the in-memory
count grows without bound. Browser slows after ~10 min.
Two complementary fixes proposed:
A. FIFO cap (1-line change in the handler — fixes the leak today)
B. embedding_batch event with replace=true (cleaner, pairs with
the snapshot/sticky-cache request for refresh-time hydration)
Producer side has already reduced cadence as a band-aid (200 pts
every 30 s, was 600 every 5 s) — 18x slower accumulation but still
unbounded.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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