[MAJOR][FIRSTCOMMIT] Add board, read board, tasks

src/types/entity.d.ts

@@ -0,0 +1,23 @@
+interface Board {
+  id: number
+  userId: number
+  name: string
+  description?: string
+  createdAt: string
+  updatedAt: string
+}
+
+interface Task {
+  id: number
+  boardId: number
+  title: string
+  description?: string
+  status: "todo" | "in-progress" | "done"
+  createdAt: string
+  updatedAt: string
+}
+
+interface TaskGroup {
+  groupId: string
+  tasks: Task[]
+}