fix: align subjectFilterRequest with Ivanti search filter schema

Remove extra fields (orWithPrevious, implicitFilters, subject) that
aren't in the Swagger filter schema. Add projection and sort fields
to match the search endpoint format.

backend/routes/ivantiFpWorkflow.js

@@ -76,6 +76,7 @@ function validateFpWorkflowForm(body) {
 /**
  * Builds the subjectFilterRequest JSON for the Ivanti FP workflow endpoint.
  * This is a stringified filter that tells Ivanti which host findings to include.
+ * Format matches the search endpoint filter schema: { filters, projection, sort }
  */
 function buildSubjectFilterRequest(findingIds) {
     return JSON.stringify({
@@ -83,11 +84,10 @@ function buildSubjectFilterRequest(findingIds) {
             field: 'id',
             exclusive: false,
             operator: 'IN',
-            orWithPrevious: false,
-            implicitFilters: [],
             value: findingIds.map(id => String(id)).join(',')
         }],
-        subject: 'hostFinding'
+        projection: 'internal',
+        sort: [{ field: 'id', direction: 'ASC' }]
     });
 }