fix: изменение структуры кода страницы канбан доски

разделение на 3 файла:
- UI
- Бизнес логика
- Обращение к бэку

src/KBBoard/BoardAPI.js

@@ -0,0 +1,33 @@
+import axios from 'axios';
+
+export const loadBoardDataAPI = async (boardId) => {
+    return axios.post('/api/boards/load', { id: boardId });
+};
+
+export const createTaskAPI = async (taskData) => {
+    return axios.post('/api/boards/categories/tasks/create', taskData);
+};
+
+export const createCategoryAPI = async (categoryData) => {
+    return axios.post('/api/boards/categories/create', categoryData);
+};
+
+export const updateTaskAPI = async (updateData) => {
+    return axios.put('/api/boards/categories/tasks/update', updateData);
+};
+
+export const updateCategoryAPI = async (updateData) => {
+    return axios.put('/api/boards/categories/update', updateData);
+};
+
+export const deleteCategoryAPI = async (categoryId) => {
+    return axios.delete('/api/boards/categories/delete', {
+        data: { id: categoryId }
+    });
+};
+
+export const deleteTaskAPI = async (taskId) => {
+    return axios.delete('/api/boards/categories/tasks/delete', {
+        data: { id: taskId }
+    });
+};