fix(ci): generate release notes from conventional commits

GitHub's auto-generated release notes require PRs to produce
meaningful content. Since commits go directly to main, releases
had empty bodies. Use requarks/changelog-action to build the
release body from conventional commit history instead.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Vrtak-CZ

.github/workflows/release.yml

@@ -42,8 +42,19 @@ jobs:
           git tag "$VERSION"
           git push origin "$VERSION"
 
+      - name: Generate release notes
+        id: changelog
+        uses: requarks/changelog-action@v1
+        with:
+          token: ${{ github.token }}
+          tag: ${{ inputs.version != '' && inputs.version || steps.semver.outputs.nextStrict }}
+          writeToFile: false
+          useGitmojis: false
+          excludeTypes: ""
+          includeInvalidCommits: true
+
       - name: Create release
         uses: softprops/action-gh-release@v2
         with:
           tag_name: ${{ inputs.version != '' && inputs.version || steps.semver.outputs.nextStrict }}
-          generate_release_notes: true
+          body: ${{ steps.changelog.outputs.changes }}