fix: preserve draft release notes, publish only after all artifacts upload

Co-authored-by: Tempest <tempestai.dev@gmail.com>

Author: gsvprharsha

.github/workflows/release.yml

@@ -12,12 +12,17 @@ jobs:
   create-release:
     runs-on: ubuntu-latest
     steps:
-      - name: Create GitHub Release
+      - name: Create GitHub Release (if no draft exists)
         run: |
-          gh release create ${{ github.ref_name }} \
-            --title "${{ github.ref_name }}" \
-            --notes "See [CHANGELOG](https://github.com/tempestai-dev/tempest/blob/main/claude-docs/changelog.md) for details." \
-            --repo tempestai-dev/tempest
+          if gh release view ${{ github.ref_name }} --repo tempestai-dev/tempest > /dev/null 2>&1; then
+            echo "Release already exists — keeping existing notes and state."
+          else
+            gh release create ${{ github.ref_name }} \
+              --draft \
+              --title "${{ github.ref_name }}" \
+              --notes "" \
+              --repo tempestai-dev/tempest
+          fi
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -122,6 +127,12 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
+      - name: Publish release
+        run: |
+          gh release edit ${{ github.ref_name }} --draft=false --repo tempestai-dev/tempest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Download signatures
         run: |
           gh release download ${{ github.ref_name }} \