Closes the Unreleased section into 1.1.0 and syncs the version across
pyproject.toml and AUSBOSS_JS_VERSION, which release_preflight.py compares so
a fresh install never trips the stale-browser warning.
First version published to the Comfy Registry. 1.0.0 was never tagged or
released anywhere, so it stays as changelog history rather than becoming the
registry's first entry describing a fifth of what it contains.