v0.10.0

- libogg 1.3.6 + libvorbis 1.3.7 vendored under vendor/ogg + vendor/vorbis. No more system -lvorbis/-lvorbisenc/-logg dependency. - Windows cross-compile unblocked: sigil build --config windows-amd64 produces libsigil-audio.a with WASAPI link flags (-lole32 -lwinmm -lksuser). - Binary size grows by ~1 MB (codebook tables); unblocks zero-config Windows builds and removes install-time friction for Linux/macOS users.

This is a minor (not patch) bump: the system-dep requirement disappearing and Windows targets becoming reachable are visible capability changes that downstream consumers should see in the version string.