Adds a nightly channel. Twice a day nightly.yml builds the newest main commit that passed CI and publishes it as a prerelease (OpenIDEA Nightly, ai.l0ng.openidea.nightly, own data and update manifest), or stops when nothing is newer than the last nightly. Platform builds move from release.yml into the reusable release-build.yml so both channels build the same way.
Versions are one patch above main with a timestamp suffix; each build gets its own v…-nightly.… tag (remote development downloads the server by version) and the last 14 are kept; a rolling nightly release holds latest.json. No MSI or RPM for nightlies. Nightly builds skip the CNB mirror manifest, and their automatic update prompts (startup and periodic) appear at most once a day; a manual check always answers.
Workflow permissions default to contents: read with write granted per job, Apple signing secrets reach only macOS builds, stable release.yml rejects nightly tags, tag pruning only matches -nightly. tags, and nightly runs share one concurrency group.
pnpm release:prepare <version> sets the app version in Cargo.toml, package.json and tauri.conf.json, refreshes Cargo.lock's workspace entries, and copies wit/*.wit over the plugin API snapshot when wit/ declares a newer API. The release workflow refused a tag with a stale snapshot, but the copy itself was a manual step.
l0ng-ai