[Task](heureka): Query remediations and show vulnerabilities vs remediated items

[hodanoori]

Task Description

Use the existing Vulnerabilities query to fetch vulnerabilities, then run the new Remediations query to find remediations for those vulnerabilities. For each vulnerability, if a remediation exists show it under the Remediated List; if not, show it under the Vulnerability List.

Acceptance criteria:

• All vulnerabilities are still returned by the existing query.
• Remediations are fetched and correctly matched to vulnerabilities.
• Items with remediations appear only in the Remediated List.
• Items without remediations appear only in the Vulnerability List.
• No duplicate entries between the two lists.