fix(hooks): add stats invalidation to account control mutations

- add cliproxy-stats query invalidation to pause/resume/solo mutations

- ensures UI shows fresh stats after account state changes

ui/src/hooks/use-cliproxy.ts

@@ -127,6 +127,7 @@ export function usePauseAccount() {
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['cliproxy-accounts'] });
       queryClient.invalidateQueries({ queryKey: ['cliproxy-auth'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-stats'] });
       toast.success('Account paused');
     },
     onError: (error: Error) => {
@@ -144,6 +145,7 @@ export function useResumeAccount() {
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['cliproxy-accounts'] });
       queryClient.invalidateQueries({ queryKey: ['cliproxy-auth'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-stats'] });
       toast.success('Account resumed');
     },
     onError: (error: Error) => {
@@ -152,6 +154,77 @@ export function useResumeAccount() {
   });
 }
 
+export function useSoloAccount() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ provider, accountId }: { provider: string; accountId: string }) =>
+      api.cliproxy.accounts.solo(provider, accountId),
+    onSuccess: (data) => {
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-accounts'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-auth'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-stats'] });
+      const pausedCount = data.paused.length;
+      toast.success(
+        `Solo mode: paused ${pausedCount} other account${pausedCount !== 1 ? 's' : ''}`
+      );
+    },
+    onError: (error: Error) => {
+      toast.error(error.message);
+    },
+  });
+}
+
+export function useBulkPauseAccounts() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ provider, accountIds }: { provider: string; accountIds: string[] }) =>
+      api.cliproxy.accounts.bulkPause(provider, accountIds),
+    onSuccess: (data) => {
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-accounts'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-auth'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-stats'] });
+      toast.success(
+        `Paused ${data.succeeded.length} account${data.succeeded.length !== 1 ? 's' : ''}`
+      );
+      if (data.failed.length > 0) {
+        toast.warning(
+          `${data.failed.length} account${data.failed.length !== 1 ? 's' : ''} failed to pause`
+        );
+      }
+    },
+    onError: (error: Error) => {
+      toast.error(error.message);
+    },
+  });
+}
+
+export function useBulkResumeAccounts() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ provider, accountIds }: { provider: string; accountIds: string[] }) =>
+      api.cliproxy.accounts.bulkResume(provider, accountIds),
+    onSuccess: (data) => {
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-accounts'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-auth'] });
+      queryClient.invalidateQueries({ queryKey: ['cliproxy-stats'] });
+      toast.success(
+        `Resumed ${data.succeeded.length} account${data.succeeded.length !== 1 ? 's' : ''}`
+      );
+      if (data.failed.length > 0) {
+        toast.warning(
+          `${data.failed.length} account${data.failed.length !== 1 ? 's' : ''} failed to resume`
+        );
+      }
+    },
+    onError: (error: Error) => {
+      toast.error(error.message);
+    },
+  });
+}
+
 // OAuth flow hook
 export function useStartAuth() {
   const queryClient = useQueryClient();

ui/src/lib/api-client.ts

@@ -415,6 +415,30 @@ export const api = {
           `/cliproxy/auth/accounts/${provider}/${accountId}/resume`,
           { method: 'POST' }
         ),
+      /** Solo mode: activate one account, pause all others */
+      solo: (provider: string, accountId: string) =>
+        request<{ activated: string; paused: string[] }>('/accounts/solo', {
+          method: 'POST',
+          body: JSON.stringify({ provider, accountId }),
+        }),
+      /** Bulk pause multiple accounts */
+      bulkPause: (provider: string, accountIds: string[]) =>
+        request<{ succeeded: string[]; failed: Array<{ id: string; reason: string }> }>(
+          '/accounts/bulk-pause',
+          {
+            method: 'POST',
+            body: JSON.stringify({ provider, accountIds }),
+          }
+        ),
+      /** Bulk resume multiple accounts */
+      bulkResume: (provider: string, accountIds: string[]) =>
+        request<{ succeeded: string[]; failed: Array<{ id: string; reason: string }> }>(
+          '/accounts/bulk-resume',
+          {
+            method: 'POST',
+            body: JSON.stringify({ provider, accountIds }),
+          }
+        ),
     },
     // OAuth flow
     auth: {