add pipeline

.github/scripts/prepare-release-metadata.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+release_name="$(jq -r '.release.name // ""' "$GITHUB_EVENT_PATH")"
+jq -r '.release.body // ""' "$GITHUB_EVENT_PATH" > release-artifacts/changelog.md
+
+if [[ -z "${release_name//[[:space:]]/}" ]]; then
+  release_name="Ascend: Ailments ${RELEASE_TAG}"
+fi
+
+if ! grep -q '[^[:space:]]' release-artifacts/changelog.md; then
+  echo "::error::The GitHub release needs a non-empty description; it is used as the CurseForge changelog."
+  exit 1
+fi
+
+case "${RELEASE_TAG,,}" in
+  *-alpha*) release_type="alpha" ;;
+  *)
+    if [[ "${RELEASE_PRERELEASE,,}" == "true" ]]; then
+      release_type="beta"
+    else
+      release_type="release"
+    fi
+    ;;
+esac
+
+delimiter="release_name_$(date +%s%N)"
+{
+  echo "display_name<<$delimiter"
+  echo "$release_name"
+  echo "$delimiter"
+  echo "release_type=$release_type"
+} >> "$GITHUB_OUTPUT"
+
+echo "Prepared $release_type metadata for $RELEASE_TAG."