feat: add Ivanti FP workflow submission from Queue

- Add shared ivantiApi.js helper (ivantiPost + ivantiMultipartPost)
- Add ivantiFpWorkflow.js backend route with validation, Ivanti API
  workflow creation, attachment uploads, submission tracking, and audit
- Add add_fp_submissions_table.js migration
- Wire route into server.js at /api/ivanti/fp-workflow
- Add FpWorkflowModal component in ReportingPage.js with form fields,
  drag-and-drop file upload, progress indicator, and result views
- Add Create FP Workflow button to QueuePanel footer (editor/admin only)
- Refactor ivantiWorkflows.js and ivantiFindings.js to use shared helper

backend/server.js

@@ -23,8 +23,9 @@ const createArcherTicketsRouter = require('./routes/archerTickets');
 const createIvantiWorkflowsRouter = require('./routes/ivantiWorkflows');
 const createIvantiFindingsRouter = require('./routes/ivantiFindings');
 const createIvantiTodoQueueRouter = require('./routes/ivantiTodoQueue');
-const createIvantiArchiveRouter   = require('./routes/ivantiArchive');
-const createComplianceRouter      = require('./routes/compliance');
+const createIvantiArchiveRouter       = require('./routes/ivantiArchive');
+const createIvantiFpWorkflowRouter   = require('./routes/ivantiFpWorkflow');
+const createComplianceRouter          = require('./routes/compliance');
 
 const app = express();
 const PORT = process.env.PORT || 3001;
@@ -227,6 +228,9 @@ app.use('/api/ivanti/todo-queue', createIvantiTodoQueueRouter(db, requireAuth));
 // Ivanti archive routes — finding archive tracking for severity score drift
 app.use('/api/ivanti/archive', createIvantiArchiveRouter(db, requireAuth));
 
+// Ivanti FP workflow routes — submit False Positive workflows to Ivanti API
+app.use('/api/ivanti/fp-workflow', createIvantiFpWorkflowRouter(db, requireAuth));
+
 // AEO compliance routes — xlsx upload, non-compliant item tracking, notes
 app.use('/api/compliance', createComplianceRouter(db, upload, requireAuth, requireGroup));