memrust v0.5.3

The dashboard now has a light theme and a toggle.

It follows your system light/dark preference by default; the header toggle overrides it in either direction and the choice is remembered (applied before first paint, so no flash on load). Each theme's signal colors are selected against their own surface rather than auto-inverted, and both palettes pass the categorical color checks — including colorblind separation.

The Colab notebooks download this version, so they get the toggle too. Python and TypeScript SDK versions are now aligned with the engine.

pip install --upgrade memrust     # Python SDK
memrust serve                     # dashboard + HTTP API on :7700

Binaries below: Linux x86_64 (static musl — runs anywhere, including Colab) and both macOS architectures.