Restructure: rename to Pulse and move app to root

- Renamed project from PSA-Utils to Pulse
- Moved all app files from autotask-app/ to root
- Updated package.json name to 'pulse'
- Updated Docker container names to pulse-app and pulse-redis
- Updated Docker network name to pulse-network

lib/hooks/use-api.ts

@@ -0,0 +1,62 @@
+import { useState, useEffect, useCallback } from 'react';
+
+interface UseApiOptions {
+  autoFetch?: boolean;
+}
+
+interface UseApiResult<T> {
+  data: T | null;
+  loading: boolean;
+  error: string | null;
+  refetch: () => Promise<void>;
+}
+
+export function useApi<T>(
+  url: string,
+  options: UseApiOptions = { autoFetch: true }
+): UseApiResult<T> {
+  const [data, setData] = useState<T | null>(null);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const fetchData = useCallback(async () => {
+    setLoading(true);
+    setError(null);
+    
+    try {
+      const response = await fetch(url);
+      if (!response.ok) {
+        const errorData = await response.json();
+        throw new Error(errorData.error || 'Failed to fetch data');
+      }
+      const result = await response.json();
+      setData(result);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'An error occurred');
+    } finally {
+      setLoading(false);
+    }
+  }, [url]);
+
+  useEffect(() => {
+    if (options.autoFetch) {
+      fetchData();
+    }
+  }, [fetchData, options.autoFetch]);
+
+  return { data, loading, error, refetch: fetchData };
+}
+
+export async function apiCall<T>(
+  url: string,
+  options?: RequestInit
+): Promise<T> {
+  const response = await fetch(url, options);
+  
+  if (!response.ok) {
+    const errorData = await response.json();
+    throw new Error(errorData.error || 'API call failed');
+  }
+  
+  return response.json();
+}