fix(vote): 防止重复点赞并优化代码格式

修复点赞逻辑，添加不可取消点赞的提示。优化代码格式，移除多余的空格和分号。

.output/public/_nuxt/builds/meta/14a75196-5d62-4be7-a6b9-052820968619.json

@@ -1 +0,0 @@
-{"id":"14a75196-5d62-4be7-a6b9-052820968619","timestamp":1755833733431,"matcher":{"static":{},"wildcard":{},"dynamic":{}},"prerendered":[]}

.output/public/_nuxt/builds/meta/d8d9858c-2486-464e-af77-4c2583e92ccb.json

@@ -0,0 +1 @@
+{"id":"d8d9858c-2486-464e-af77-4c2583e92ccb","timestamp":1755833992365,"matcher":{"static":{},"wildcard":{},"dynamic":{}},"prerendered":[]}