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/migrations/add_fp_submissions_table.js

@@ -0,0 +1,57 @@
+// Migration: Add ivanti_fp_submissions table
+const sqlite3 = require('sqlite3').verbose();
+const path = require('path');
+
+const dbPath = path.join(__dirname, '..', 'cve_database.db');
+const db = new sqlite3.Database(dbPath);
+
+console.log('Starting ivanti_fp_submissions migration...');
+
+db.serialize(() => {
+    db.run(`
+        CREATE TABLE IF NOT EXISTS ivanti_fp_submissions (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            user_id INTEGER NOT NULL,
+            username TEXT NOT NULL,
+            ivanti_workflow_batch_id INTEGER,
+            ivanti_generated_id TEXT,
+            workflow_name TEXT NOT NULL,
+            reason TEXT NOT NULL,
+            description TEXT,
+            expiration_date TEXT NOT NULL,
+            scope_override TEXT NOT NULL DEFAULT 'Authorized',
+            finding_ids_json TEXT NOT NULL,
+            queue_item_ids_json TEXT NOT NULL,
+            attachment_count INTEGER DEFAULT 0,
+            attachment_results_json TEXT,
+            status TEXT NOT NULL DEFAULT 'success' CHECK(status IN ('success', 'partial', 'failed')),
+            error_message TEXT,
+            created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+        )
+    `, (err) => {
+        if (err) console.error('Error creating table:', err);
+        else console.log('✓ ivanti_fp_submissions table created');
+    });
+
+    db.run(
+        'CREATE INDEX IF NOT EXISTS idx_fp_submissions_user ON ivanti_fp_submissions(user_id)',
+        (err) => {
+            if (err) console.error('Error creating index:', err);
+            else console.log('✓ user_id index created');
+        }
+    );
+
+    db.run(
+        'CREATE INDEX IF NOT EXISTS idx_fp_submissions_ivanti_id ON ivanti_fp_submissions(ivanti_generated_id)',
+        (err) => {
+            if (err) console.error('Error creating index:', err);
+            else console.log('✓ ivanti_generated_id index created');
+        }
+    );
+
+    console.log('✓ Migration statements queued');
+});
+
+db.close(() => {
+    console.log('Migration complete!');
+});