feat: add legacy axios-style client for compatibility; implement post method with endpoint handling and error management

lib/api/client.ts

@@ -145,5 +145,46 @@ async function apiRequest<T>(
   return response.json()
 }
 
+// * Legacy axios-style client for compatibility
+export function getClient() {
+  return {
+    post: async (endpoint: string, body: any) => {
+      // Handle the case where endpoint might start with /api (remove it if our base client adds it, OR adjust usage)
+      // Our apiRequest adds /api/v1 prefix.
+      // If we pass /api/billing/checkout, apiRequest makes it /api/v1/api/billing/checkout -> Wrong.
+      // We should probably just expose apiRequest directly or wrap it properly.
+      
+      // Let's adapt the endpoint:
+      // If endpoint starts with /api/, strip it because apiRequest adds /api/v1
+      // BUT WAIT: The backend billing endpoint is likely at /api/billing/checkout (not /api/v1/billing/checkout) if I registered it at root group?
+      // Let's check backend routing.
+      // In main.go: billingGroup := router.Group("/api/billing") -> so it is at /api/billing/... NOT /api/v1/billing...
+      
+      // So we need a raw fetch for this, or modify apiRequest to support non-v1 routes.
+      // For now, let's just implement a simple fetch wrapper that mimics axios
+      
+      const token = typeof window !== 'undefined' ? localStorage.getItem('token') : null
+      const headers: any = { 'Content-Type': 'application/json' }
+      // Although we use cookies, sometimes we might fallback to token if cookies fail? 
+      // Pulse uses cookies primarily now.
+      
+      const url = `${API_URL}${endpoint}`
+      const res = await fetch(url, {
+        method: 'POST',
+        headers,
+        body: JSON.stringify(body),
+        credentials: 'include'
+      })
+      
+      if (!res.ok) {
+        const err = await res.json().catch(() => ({}))
+        throw new Error(err.error || 'Request failed')
+      }
+      
+      return { data: await res.json() }
+    }
+  }
+}
+
 export const authFetch = apiRequest
 export default apiRequest