Fix bash arithmetic exit status in sync-project-status workflow

Use prefix increment ((++VAR)) instead of postfix ((VAR++)).

With postfix increment, when VAR=0, ((VAR++)) returns the old value (0),
which in bash means exit status 1. With set -e, this exits the script.

Prefix increment returns the new value (≥1), so exit status is always 0.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: 2 people

.github/workflows/sync-project-status.yml

@@ -103,15 +103,15 @@ jobs:
 
               if echo "$RESULT" | jq -e '.errors' > /dev/null 2>&1; then
                 echo "::error::$REPO_NAME#$ISSUE_NUMBER: $(echo "$RESULT" | jq -r '.errors[0].message')"
-                ((ERRORS++))
+                ((++ERRORS))
               else
-                ((SYNCED++))
+                ((++SYNCED))
               fi
 
               # Small delay to avoid rate limiting
               sleep 0.3
             else
-              ((SYNCED++))
+              ((++SYNCED))
             fi
           done < <(jq -c '.[]' /tmp/roadmap_issues.json)
           echo "::endgroup::"