Initialisation

Added the packages and files for the backend server

node_modules/graphql/validation/rules/NoFragmentCyclesRule.d.ts

@@ -0,0 +1,13 @@
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
+/**
+ * No fragment cycles
+ *
+ * The graph of fragment spreads must not form any cycles including spreading itself.
+ * Otherwise an operation could infinitely spread or infinitely execute on cycles in the underlying data.
+ *
+ * See https://spec.graphql.org/draft/#sec-Fragment-spreads-must-not-form-cycles
+ */
+export declare function NoFragmentCyclesRule(
+  context: ASTValidationContext,
+): ASTVisitor;