add vikunja integration

frontend/src/services/vikunja.ts

@@ -0,0 +1,42 @@
+import { api } from './api';
+import type {
+  VikunjaTasksResponse,
+  VikunjaProjectsResponse,
+  VikunjaTask,
+} from '../types/vikunja.types';
+
+interface ApiResponse<T> {
+  success: boolean;
+  data: T;
+  configured: boolean;
+}
+
+export const vikunjaApi = {
+  getMyTasks(): Promise<VikunjaTasksResponse> {
+    return api
+      .get<ApiResponse<VikunjaTasksResponse['data']>>('/api/vikunja/tasks')
+      .then((r) => ({ configured: r.data.configured, data: r.data.data }));
+  },
+
+  getOverdueTasks(): Promise<VikunjaTasksResponse> {
+    return api
+      .get<ApiResponse<VikunjaTasksResponse['data']>>('/api/vikunja/overdue')
+      .then((r) => ({ configured: r.data.configured, data: r.data.data }));
+  },
+
+  getProjects(): Promise<VikunjaProjectsResponse> {
+    return api
+      .get<ApiResponse<VikunjaProjectsResponse['data']>>('/api/vikunja/projects')
+      .then((r) => ({ configured: r.data.configured, data: r.data.data }));
+  },
+
+  createTask(projectId: number, title: string, dueDate?: string): Promise<{ data: VikunjaTask }> {
+    return api
+      .post<{ success: boolean; data: VikunjaTask }>('/api/vikunja/tasks', {
+        projectId,
+        title,
+        dueDate,
+      })
+      .then((r) => ({ data: r.data.data }));
+  },
+};