v0.10.1

Fixed

• cargo publish includes web UI assets: The published crate now includes the pre-built
  Svelte frontend so that cargo install mtrack works without Node.js. The build script no
  longer creates files in the source tree during packaging.
• Publish workflow builds frontend: The GitHub Actions publish workflow now builds the
  Svelte frontend before cargo publish, using devbox for consistent tooling.
• Remote client tests no longer flaky: gRPC remote client tests now use OS-assigned
  ephemeral ports instead of the default gRPC port, so they pass even when a local mtrack
  server is running.