feat: auto release on tag

Author: mbevc1

.github/workflows/publish.yml

@@ -1,8 +1,15 @@
-name: Publish
+name: Release
 
+# Triggered by pushing a semver tag (e.g. v2.1.3).
+# 1. Creates a GitHub Release with auto-generated notes.
+# 2. Builds dist/ and force-pushes action.yml + dist/ to the tag.
+# 3. Updates the major version tag (v2.1.3 -> v2).
 on:
-  release:
-    types: [published, edited]
+  tags:
+      - 'v*.*.*'
+
+permissions:
+  contents: write
 
 jobs:
   notify-start:
@@ -14,17 +21,32 @@ jobs:
           slack-channel-id: ${{ vars.SLACK_CHANNEL_ID }}
           stage: start
 
-  build:
-    name: Build
+  release:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v6
         with:
-          ref: ${{ github.event.release.tag_name }}
+          node-version: 24
+          cache: npm
+
       - name: Install deps and build
         run: npm ci && npm run build
-      - uses: JasonEtco/build-and-tag-action@v2
+
+      - name: Create GitHub Release with auto-generated notes
+        uses: softprops/action-gh-release@v3
+        with:
+          generate_release_notes: true
+          # Mark as prerelease if the tag contains a hyphen (e.g. v2.1.3-beta.1).
+          prerelease: ${{ contains(github.ref_name, '-') }}
+
+      - name: Build and tag (force-pushes dist/ to the tag and updates major/minor refs)
+        uses: JasonEtco/build-and-tag-action@v2
         env:
           GITHUB_TOKEN: ${{ github.token }}