Simplify CI by removing job matrices and always building the WebUI flavor. Both dev and release workflows now run build:all, verify the websocket native module, and produce two archives: a zero-install bundle that includes node.exe and a no-node variant (requires Node >=22). Artifact names and upload steps were adjusted (dev uses SHA-based names; release uses tag-based names), and release notes were updated to document the two packages and WebUI defaults.