fix(frontend): 修复UI改进分支中的关键问题

- 修复RedeemView订阅刷新失败导致流程中断的问题
  将订阅刷新隔离到独立try/catch，失败时仅显示警告
- 修复DataTable resize事件监听器泄漏问题
  确保添加和移除使用同一个回调引用
- 修复订阅状态缓存导致强制刷新失效的问题
  force=true时绕过activePromise缓存，clear()清空缓存
- 修复图表主题切换后颜色不更新的问题
  添加图表ref并在主题切换时调用update()方法

frontend/src/stores/subscriptions.ts

@@ -48,7 +48,7 @@ export const useSubscriptionStore = defineStore('subscriptions', () => {
     }
 
     // Return in-flight request if exists (deduplication)
-    if (activePromise) {
+    if (activePromise && !force) {
       return activePromise
     }
 
@@ -56,7 +56,7 @@ export const useSubscriptionStore = defineStore('subscriptions', () => {
 
     // Start new request
     loading.value = true
-    activePromise = subscriptionsAPI
+    const requestPromise = subscriptionsAPI
       .getActiveSubscriptions()
       .then((data) => {
         if (currentGeneration === requestGeneration) {
@@ -71,10 +71,14 @@ export const useSubscriptionStore = defineStore('subscriptions', () => {
         throw error
       })
       .finally(() => {
-        loading.value = false
-        activePromise = null
+        if (activePromise === requestPromise) {
+          loading.value = false
+          activePromise = null
+        }
       })
 
+    activePromise = requestPromise
+
     return activePromise
   }
 
@@ -106,6 +110,7 @@ export const useSubscriptionStore = defineStore('subscriptions', () => {
    */
   function clear() {
     requestGeneration++
+    activePromise = null
     activeSubscriptions.value = []
     loaded.value = false
     lastFetchedAt.value = null