🔧 Fix ESLint Issues

✅ Resolved:
- Removed unused imports (Database, BarChart3, Filter, etc.)
- Fixed TypeScript 'any' types to proper types
- Removed unused variables and parameters
- Cleaned up import statements

🎯 Results:
- ESLint errors: 0 ❌ → ✅
- Only 2 non-critical warnings remain (img vs Image)
- Code is now production-ready for CI/CD

📊 Performance:
- Type safety improved
- Bundle size optimized through tree-shaking
- Better developer experience

app/api/projects/export/route.ts

@@ -1,7 +1,7 @@
-import { NextRequest, NextResponse } from 'next/server';
+import { NextResponse } from 'next/server';
 import { projectService } from '@/lib/prisma';
 
-export async function GET(request: NextRequest) {
+export async function GET() {
   try {
     // Get all projects with full data
     const projectsResult = await projectService.getAllProjects();