ci(workflows): use release action and simplify notes

- Drop GPT-based release notes; generate from git log into
  release_notes.md
- Remove OPENAI_API_KEY requirement
- Replace curl-based release creation and asset uploads with
  akkuman/gitea-release-action@v1 (uses body_path and files)
- Add NODE_OPTIONS=--experimental-fetch for the action

This reduces complexity, removes an external dependency, and makes
releases more deterministic and maintainable.

.gitea/workflows/multi-platform.yml

@@ -83,10 +83,7 @@ jobs:
           echo "last_tag=$LAST_TAG" >> $GITHUB_OUTPUT
           echo "Last tag/commit: $LAST_TAG"
 
-      - name: Generate release notes with GPT-5
-        id: release_notes
-        env:
-          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+      - name: Generate release notes
         run: |
           # Get git log since last release
           if [ -n "${{ steps.last_tag.outputs.last_tag }}" ]; then
@@ -95,40 +92,19 @@ jobs:
             GIT_LOG=$(git log --pretty=format:"- %s (%an)" HEAD~10..HEAD)
           fi
 
-          # Create a temporary file for the API request
-          cat > request.json << EOF
-          {
-            "model": "gpt-4o",
-            "messages": [
-              {
-                "role": "system",
-                "content": "You are a technical writer creating GitHub release notes. Generate professional, concise release notes based on git commit history. Focus on user-facing changes and improvements. Use proper markdown formatting with sections like ## What's New, ## Improvements, ## Bug Fixes, etc. Keep it under 500 words."
-              },
-              {
-                "role": "user",
-                "content": "Generate release notes for version ${{ steps.version.outputs.version }} based on these commits:\\n\\n$GIT_LOG"
-              }
-            ],
-            "max_tokens": 1000,
-            "temperature": 0.3
-          }
+          # Generate simple release notes
+          cat > release_notes.md << EOF
+          ## Release ${{ steps.version.outputs.version }}
+
+          ### Changes
+          $GIT_LOG
+
+          ---
+          *Generated automatically from commit history*
           EOF
 
-          # Make API request to OpenAI
-          RESPONSE=$(curl -s -X POST "https://api.openai.com/v1/chat/completions" \
-            -H "Content-Type: application/json" \
-            -H "Authorization: Bearer $OPENAI_API_KEY" \
-            -d @request.json)
-
-          # Extract the content and save to file
-          echo "$RESPONSE" | jq -r '.choices[0].message.content' > release_notes.md
-
-          # Set output for use in release creation
-          {
-            echo 'notes<<EOF'
-            cat release_notes.md
-            echo 'EOF'
-          } >> $GITHUB_OUTPUT
+          echo "Generated release notes:"
+          cat release_notes.md
 
       - name: Prepare release assets
         run: |
@@ -138,35 +114,14 @@ jobs:
           done
           ls -la release_assets/
 
-      - name: Create Gitea Release
-        run: |
-          # Create the release using Gitea API
-          curl -X POST \
-            -H "Authorization: token ${{ secrets.RELEASE_TOKEN }}" \
-            -H "Content-Type: application/json" \
-            -d '{
-              "tag_name": "${{ steps.version.outputs.version }}",
-              "name": "Release ${{ steps.version.outputs.version }}",
-              "body": "'"$(cat release_notes.md | sed 's/"/\\"/g' | tr '\n' '\\n')"'",
-              "draft": false,
-              "prerelease": false
-            }' \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases"
-
-      - name: Upload release assets
-        run: |
-          # Get the release ID from the created release
-          RELEASE_ID=$(curl -s -H "Authorization: token ${{ secrets.RELEASE_TOKEN }}" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/tags/${{ steps.version.outputs.version }}" | \
-            jq -r '.id')
-
-          # Upload each asset
-          for file in release_assets/*; do
-            filename=$(basename "$file")
-            echo "Uploading $filename..."
-            curl -X POST \
-              -H "Authorization: token ${{ secrets.RELEASE_TOKEN }}" \
-              -H "Content-Type: application/octet-stream" \
-              --data-binary @"$file" \
-              "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/$RELEASE_ID/assets?name=$filename"
-          done
+      - name: Create GitHub Release with Assets
+        uses: akkuman/gitea-release-action@v1
+        env:
+          NODE_OPTIONS: '--experimental-fetch'
+        with:
+          server_url: ${{ github.server_url }}
+          token: ${{ secrets.RELEASE_TOKEN }}
+          tag_name: ${{ steps.version.outputs.version }}
+          body_path: release_notes.md
+          files: |-
+            release_assets/**