asset path correction

src/admin/App.jsx

@@ -1,4 +1,6 @@
 import { useEffect, useRef, useState, Component } from 'react';
+
+const BASE = import.meta.env.BASE_URL;
 import {
   LayoutDashboard,
   Sparkles,
@@ -93,7 +95,7 @@ function LoginPreview() {
   return (
     <div className="login-preview">
       <div className="login-preview-intro">
-        <img src="/assets/cavin_logo.svg" alt="Cavin Infotech" />
+        <img src={`${BASE}assets/cavin_logo.svg`} alt="Cavin Infotech" />
         <div>
           <h1>Content <span>Manager</span></h1>
           <p>Preview the live website before you sign in. Edits publish instantly after login.</p>
@@ -501,7 +503,7 @@ export default function App() {
 
       <aside className={`admin-sidebar ${sidebarOpen ? 'open' : ''}`}>
         <div className="admin-sidebar-brand">
-          <img src="/assets/cavin_logo.svg" alt="Cavin Infotech" />
+          <img src={`${BASE}assets/cavin_logo.svg`} alt="Cavin Infotech" />
           <h2>Content Manager</h2>
           <p>Cavin Infotech Website</p>
         </div>