fix(settings): memoize useSettingsActions to prevent infinite render loop

- wrap return object in useMemo with all action callbacks as deps

- prevents new object reference on every render

- fixes Maximum update depth exceeded error on settings page

ui/src/pages/settings/hooks/context-hooks.ts

@@ -3,7 +3,7 @@
  * Hooks for accessing and updating settings context state
  */
 
-import { useCallback, useContext } from 'react';
+import { useCallback, useContext, useMemo } from 'react';
 import { SettingsContext } from '../settings-context';
 import type {
   WebSearchConfig,
@@ -131,7 +131,8 @@ export function useSettingsActions() {
     [dispatch]
   );
 
-  return {
+  return useMemo(
+    () => ({
       setWebSearchConfig,
       setWebSearchStatus,
       setWebSearchLoading,
@@ -153,5 +154,29 @@ export function useSettingsActions() {
       setProxyTesting,
       setRawConfig,
       setRawConfigLoading,
-  };
+    }),
+    [
+      setWebSearchConfig,
+      setWebSearchStatus,
+      setWebSearchLoading,
+      setWebSearchStatusLoading,
+      setWebSearchSaving,
+      setWebSearchError,
+      setWebSearchSuccess,
+      setGlobalEnvConfig,
+      setGlobalEnvLoading,
+      setGlobalEnvSaving,
+      setGlobalEnvError,
+      setGlobalEnvSuccess,
+      setProxyConfig,
+      setProxyLoading,
+      setProxySaving,
+      setProxyError,
+      setProxySuccess,
+      setProxyTestResult,
+      setProxyTesting,
+      setRawConfig,
+      setRawConfigLoading,
+    ]
+  );
 }