Fix: Enable multi-vendor support for CVE entries

- Changed CVEs table constraint from UNIQUE(cve_id) to UNIQUE(cve_id, vendor)
- Added vendor column to documents table for proper file organization
- Updated backend INSERT statements to include vendor field in both CVE and document creation
- Fixed document retrieval to filter by vendor
- Created corrected setup.js that includes multi-vendor support from initial setup
- Added migration scripts for existing databases

Resolves #1: Users can now add the same CVE-ID with multiple different vendors, each maintaining separate document storage organized as CVE-ID/Vendor/files

frontend/src/App.js

@@ -1,7 +1,7 @@
 import React, { useState, useEffect } from 'react';
 import { Search, FileText, AlertCircle, Download, Upload, Eye, Filter, CheckCircle, XCircle, Loader, Trash2, Plus } from 'lucide-react';
 
-const API_BASE = 'http://71.85.90.6:3001/api';
+const API_BASE = 'http://192.168.2.117:3001/api';
 
 const severityLevels = ['All Severities', 'Critical', 'High', 'Medium', 'Low'];
 
@@ -626,7 +626,7 @@ export default function App() {
                                       </div>
                                       <div className="flex gap-2">
                                         <a 
-                                          href={`http://71.85.90.6:3001/${doc.file_path}`}
+                                          href={`http://192.168.2.117:3001/${doc.file_path}`}
                                           target="_blank"
                                           rel="noopener noreferrer"
                                           className="px-3 py-1 text-sm text-[#0476D9] hover:bg-blue-50 rounded transition-colors border border-[#0476D9]"