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tiennm99
a823f8527d
Backend: - rate-limiter: retryAfter now in seconds; ms-precision lu preserves fractional regen residue across calls (C1, C2) - redis-client: throw on Upstash 200-with-error envelope; redisRaw returns body.result (NH1) - constants: MAX_BATCH_SIZE = MAX_CREDITS = 256 (was 512 vs 256) - worker: content-length cap, gzip + s-maxage=10 on /api/canvas, broadcast via executionCtx.waitUntil with r.ok check (NC2, H4, H5) - canvas-storage: warn on truncated Upstash read instead of silent zero-pad (NH2) - get-user-id: SHA-256 (16 hex chars) replaces 32-bit string hash; missing cf-connecting-ip routes to anon:dev with warn (H1, H2); function is now async - canvas-room: log unclean WS closes and errors; defensive close on unexpected client message (NH4, N5) Frontend: - pixel buffer capped at MAX_BATCH_SIZE with toast (NC2) - Submit error UX: toast for 429/413/400/5xx/network; honor retryAfter (NC1) - committedColors allocated upfront so WS updates during initial fetch no longer null-deref (NC3) - handleWheel always renders even when zoom is clamped (C1, C2) - canvas-decoder throws on truncated input instead of reading past end with || 0 (C3) - WS reconnect refetches canvas to recover missed pixels (C4) - pixel-buffer Map cache for O(1) getColorAt/pixelCount (NH1) - cancel in-progress stroke on mode switch (NH3) - canvas load error overlay with Retry button (NH5) - DPR-aware canvas sizing (H1) - onMount cleanup is now sync (no leaked resize listener) (H2) Tests: - update for async getUserId, decoder bounds check, redis error format; add Upstash error-envelope coverage