Feat: train용 store 제작, 추후 수정 필요

frontend/src/stores/useTrainStore.ts

@@ -0,0 +1,40 @@
+import { create } from 'zustand';
+
+interface TrainingData {
+  epoch: number;
+  total_epochs: number;
+  box_loss: number;
+  cls_loss: number;
+  dfl_loss: number;
+  fitness: number;
+  epoch_time: number;
+  left_second: number;
+}
+
+interface StoreState {
+  trainingDataByProject: { [projectId: string]: TrainingData[] };
+  addTrainingData: (projectId: string, data: TrainingData) => void;
+  resetTrainingData: (projectId: string) => void;
+}
+
+const useTrainStore = create<StoreState>((set) => ({
+  trainingDataByProject: {},
+
+  addTrainingData: (projectId: string, data: TrainingData) =>
+    set((state) => ({
+      trainingDataByProject: {
+        ...state.trainingDataByProject,
+        [projectId]: [...(state.trainingDataByProject[projectId] || []), data],
+      },
+    })),
+
+  resetTrainingData: (projectId: string) =>
+    set((state) => ({
+      trainingDataByProject: {
+        ...state.trainingDataByProject,
+        [projectId]: [],
+      },
+    })),
+}));
+
+export default useTrainStore;