fix(139): declare the PC client type to lift the 50 GB upload cap

The third field of X-Yun-Client-Info is the client type, and the server
uses it to pick the single-file upload limit that comes with the account's
membership: 50 GB for 9 (web) and 2 (app), 500 GB for 13 (the desktop
client). The driver sent 9, so personal_new uploads were rejected with
"权益不足" above 50 GB even on accounts that pay for the larger limit.

Measured against the live API by declaring a size through /file/create
without transferring anything: with 9 the boundary sits exactly at 50 GB,
with 13 it moves to exactly 500 GB. Only this field matters. The platform
string, the version, the device fingerprint, X-Yun-App-Channel and
X-Yun-Svc-Type all leave the boundary where it is.

Author: okatu-loli

drivers/139/util.go

@@ -597,7 +597,9 @@ func (d *Yun139) personalRequest(pathname string, method string, callback base.R
 		"X-Yun-Api-Version":    "v1",
 		"X-Yun-App-Channel":    "10000034",
 		"X-Yun-Channel-Source": "10000034",
-		"X-Yun-Client-Info":    "||9|7.14.0|chrome|120.0.0.0|||windows 10||zh-CN|||dW5kZWZpbmVk||",
+		// 第三个字段是客户端类型，服务端按它决定单文件上传上限：
+		// 9（网页）和 2（App）为 50 GB，13（PC 客户端）为 500 GB。
+		"X-Yun-Client-Info":    "||13|7.14.0|chrome|120.0.0.0|||windows 10||zh-CN|||dW5kZWZpbmVk||",
 		"X-Yun-Module-Type":    "100",
 		"X-Yun-Svc-Type":       "1",
 	})