Update in-memory rate limiter to fail secure (reject new requests) when maximum capacity is reached, rather than evicting the oldest tracking entry. This prevents an attacker from bypassing their rate limit by flooding the store with spoofed `x-forwarded-for` IPs to intentionally trigger cache eviction. Also cleaned up temporary files and updated tests to verify the behavior.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Avoids unnecessary O(N) memory allocation and copy by returning `Buffer.from(...)` directly since Buffer inherits from Uint8Array in Node.js.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Extracted the grid mapping logic out of the return block into a `useMemo`
hook depending on `[assets, layout, openLightbox]`. This prevents the
entire photo grid—including complex Next.js `<Image>` and `<FadeIn>`
components—from needlessly re-rendering every time the user navigates
via the lightbox arrows or presses next/prev buttons, which previously
caused `lightboxIndex` to update and trigger a re-render of the entire grid.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
