fix(home): scope cached proxy selection to active profile to prevent fallback reset on profile switch

Previously, Home card used global localStorage keys for selected proxy/group
(`clash-verge-selected-proxy(-group)`), causing cached selections from other
profiles to override the current one and reset the fallback to Direct when switching.

Now the cache keys are namespaced per profile, with migration of legacy values
and unified helpers (src/components/home/current-proxy-card.tsx:110–147),
ensuring each profile restores its own proxy state independently.

src/components/home/current-proxy-card.tsx

@@ -34,6 +34,7 @@ import { useNavigate } from "react-router-dom";
 import { delayGroup, healthcheckProxyProvider } from "tauri-plugin-mihomo-api";
 
 import { EnhancedCard } from "@/components/home/enhanced-card";
+import { useProfiles } from "@/hooks/use-profiles";
 import { useProxySelection } from "@/hooks/use-proxy-selection";
 import { useVerge } from "@/hooks/use-verge";
 import { useAppData } from "@/providers/app-data-context";
@@ -101,7 +102,50 @@ export const CurrentProxyCard = () => {
   const theme = useTheme();
   const { proxies, clashConfig, refreshProxy } = useAppData();
   const { verge } = useVerge();
+  const { current: currentProfile } = useProfiles();
   const autoDelayEnabled = verge?.enable_auto_delay_detection ?? false;
+  const currentProfileId = currentProfile?.uid || null;
+
+  const getProfileStorageKey = useCallback(
+    (baseKey: string) =>
+      currentProfileId ? `${baseKey}:${currentProfileId}` : baseKey,
+    [currentProfileId],
+  );
+
+  const readProfileScopedItem = useCallback(
+    (baseKey: string) => {
+      if (typeof window === "undefined") return null;
+      const profileKey = getProfileStorageKey(baseKey);
+      const profileValue = localStorage.getItem(profileKey);
+      if (profileValue != null) {
+        return profileValue;
+      }
+
+      if (profileKey !== baseKey) {
+        const legacyValue = localStorage.getItem(baseKey);
+        if (legacyValue != null) {
+          localStorage.removeItem(baseKey);
+          localStorage.setItem(profileKey, legacyValue);
+          return legacyValue;
+        }
+      }
+
+      return null;
+    },
+    [getProfileStorageKey],
+  );
+
+  const writeProfileScopedItem = useCallback(
+    (baseKey: string, value: string) => {
+      if (typeof window === "undefined") return;
+      const profileKey = getProfileStorageKey(baseKey);
+      localStorage.setItem(profileKey, value);
+      if (profileKey !== baseKey) {
+        localStorage.removeItem(baseKey);
+      }
+    },
+    [getProfileStorageKey],
+  );
 
   // 统一代理选择器
   const { handleSelectChange } = useProxySelection({
@@ -217,7 +261,7 @@ export const CurrentProxyCard = () => {
         },
       }));
     } else {
-      const savedGroup = localStorage.getItem(STORAGE_KEY_GROUP);
+      const savedGroup = readProfileScopedItem(STORAGE_KEY_GROUP);
       // eslint-disable-next-line @eslint-react/hooks-extra/no-direct-set-state-in-use-effect
       setState((prev) => ({
         ...prev,
@@ -227,7 +271,7 @@ export const CurrentProxyCard = () => {
         },
       }));
     }
-  }, [isGlobalMode, isDirectMode, proxies]);
+  }, [isGlobalMode, isDirectMode, proxies, readProfileScopedItem]);
 
   // 监听代理数据变化，更新状态
   useEffect(() => {
@@ -273,9 +317,9 @@ export const CurrentProxyCard = () => {
             newDisplayProxy = proxies.records?.[newProxy] || null;
 
             if (!isGlobalMode && !isDirectMode) {
-              localStorage.setItem(STORAGE_KEY_GROUP, newGroup);
+              writeProfileScopedItem(STORAGE_KEY_GROUP, newGroup);
               if (newProxy) {
-                localStorage.setItem(STORAGE_KEY_PROXY, newProxy);
+                writeProfileScopedItem(STORAGE_KEY_PROXY, newProxy);
               }
             }
           }
@@ -298,7 +342,7 @@ export const CurrentProxyCard = () => {
         displayProxy: newDisplayProxy,
       };
     });
-  }, [proxies, isGlobalMode, isDirectMode]);
+  }, [proxies, isGlobalMode, isDirectMode, writeProfileScopedItem]);
 
   // 使用防抖包装状态更新
   const timeoutRef = React.useRef<ReturnType<typeof setTimeout> | null>(null);
@@ -322,7 +366,7 @@ export const CurrentProxyCard = () => {
 
       const newGroup = event.target.value;
 
-      localStorage.setItem(STORAGE_KEY_GROUP, newGroup);
+      writeProfileScopedItem(STORAGE_KEY_GROUP, newGroup);
 
       setState((prev) => {
         const group = prev.proxyData.groups.find(
@@ -347,7 +391,7 @@ export const CurrentProxyCard = () => {
         };
       });
     },
-    [isGlobalMode, isDirectMode],
+    [isGlobalMode, isDirectMode, writeProfileScopedItem],
   );
 
   // 处理代理节点变更
@@ -369,7 +413,7 @@ export const CurrentProxyCard = () => {
       }));
 
       if (!isGlobalMode && !isDirectMode) {
-        localStorage.setItem(STORAGE_KEY_PROXY, newProxy);
+        writeProfileScopedItem(STORAGE_KEY_PROXY, newProxy);
       }
 
       const skipConfigSave = isGlobalMode || isDirectMode;
@@ -381,6 +425,7 @@ export const CurrentProxyCard = () => {
       state.selection,
       debouncedSetState,
       handleSelectChange,
+      writeProfileScopedItem,
     ],
   );