ci(release): sync github release notes from changelog

.github/workflows/release-notes-sync.yml

@@ -0,0 +1,67 @@
+name: Release Notes Sync
+
+on:
+  push:
+    tags:
+      - "v*"
+    branches:
+      - main
+    paths:
+      - "CHANGELOG.md"
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Release tag to sync (e.g. v0.1.14). Leave empty to use top changelog entry."
+        required: false
+        type: string
+      create_if_missing:
+        description: "Create release if missing (normally only needed for tag events)."
+        required: false
+        default: false
+        type: boolean
+
+concurrency:
+  group: release-notes-sync-${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  sync-release-notes:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Sync release body from changelog
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPO: ${{ github.repository }}
+          EVENT_NAME: ${{ github.event_name }}
+          REF: ${{ github.ref }}
+          INPUT_TAG: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') && github.ref_name || github.event.inputs.tag }}
+          INPUT_CREATE_IF_MISSING: ${{ github.event.inputs.create_if_missing }}
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          args=(--repo "$REPO")
+
+          if [ -n "${INPUT_TAG:-}" ]; then
+            args+=(--tag "$INPUT_TAG")
+          fi
+
+          create_if_missing="false"
+          if [ "$EVENT_NAME" = "push" ] && [[ "$REF" == refs/tags/v* ]]; then
+            create_if_missing="true"
+          elif [ "$EVENT_NAME" = "workflow_dispatch" ] && [ "${INPUT_CREATE_IF_MISSING:-false}" = "true" ]; then
+            create_if_missing="true"
+          fi
+
+          if [ "$create_if_missing" = "true" ]; then
+            args+=(--create-if-missing)
+          fi
+
+          node scripts/sync-release-notes-from-changelog.mjs "${args[@]}"