feat(client): init store for nodes

client/src/store/nodeStore.ts

@@ -0,0 +1,25 @@
+import { Edge, Node } from "@xyflow/react";
+import { create } from "zustand";
+import { devtools } from "zustand/middleware";
+
+type NodeStoreState = {
+  node: Node;
+  edge: Edge;
+  loading: boolean;
+};
+
+type NodeStoreActions = {
+  addNode: (node: Node) => void;
+  addEdge: (edge: Edge) => void;
+  removeNode: (nodeId: string) => void;
+  removeEdge: (edgeId: string) => void;
+};
+
+type NodeStore = NodeStoreState & NodeStoreActions;
+
+export const useNodeStore = create<NodeStore>()(
+  devtools((set) => ({
+    nodes: [],
+    edges: [],
+  }))
+);