优化项目结构

public/assets/js/api.js

@@ -0,0 +1,74 @@
+const api = {
+    async request(url, options = {}) {
+        const token = Storage.getToken();
+        const headers = {
+            'Content-Type': 'application/json',
+            ...(token ? { 'Authorization': 'Bearer ' + token } : {}),
+            ...options.headers
+        };
+
+        const response = await fetch('/api' + url, {
+            ...options,
+            headers
+        });
+
+        // 401 自动跳转登录
+        if (response.status === 401) {
+            Storage.clearToken();
+            window.location.href = '/login.php';
+            throw new Error('请先登录');
+        }
+
+        const data = await response.json();
+        if (!response.ok) {
+            throw new Error(data.message || '请求失败');
+        }
+        return data;
+    },
+
+    get(url) {
+        return this.request(url, { method: 'GET' });
+    },
+
+    post(url, data) {
+        return this.request(url, {
+            method: 'POST',
+            body: JSON.stringify(data)
+        });
+    },
+
+    put(url, data) {
+        return this.request(url, {
+            method: 'PUT',
+            body: JSON.stringify(data)
+        });
+    },
+
+    delete(url) {
+        return this.request(url, { method: 'DELETE' });
+    },
+
+    // 文件上传（不用 JSON Content-Type）
+    async upload(url, formData) {
+        const token = Storage.getToken();
+        const headers = token ? { 'Authorization': 'Bearer ' + token } : {};
+        
+        const response = await fetch('/api' + url, {
+            method: 'POST',
+            headers,
+            body: formData
+        });
+
+        if (response.status === 401) {
+            Storage.clearToken();
+            window.location.href = '/login.php';
+            throw new Error('请先登录');
+        }
+
+        const data = await response.json();
+        if (!response.ok) {
+            throw new Error(data.message || '上传失败');
+        }
+        return data;
+    }
+};