new file: backend/src/controllers/schemaController.ts

new file:   backend/src/migrations/008_add_database_schemas.sql
	modified:   backend/src/routes/sqlInterface.ts
	modified:   frontend/package.json
	modified:   frontend/src/App.tsx
	modified:   frontend/src/components/Sidebar.tsx
	new file:   frontend/src/pages/DatabaseSchema.tsx
	modified:   frontend/src/services/api.ts

frontend/package.json

@@ -17,6 +17,7 @@
     "@hookform/resolvers": "^3.3.3",
     "@monaco-editor/react": "^4.6.0",
     "@tanstack/react-query": "^5.14.2",
+    "@xyflow/react": "^12.0.0",
     "axios": "^1.6.2",
     "clsx": "^2.0.0",
     "cmdk": "^0.2.0",