feat(assets): replace logo image with SVG format and update favicon; adjust theme color in manifest

assets/admin/components/layout/Sidebar.tsx

@@ -453,7 +453,7 @@ export default function Sidebar({ mobileOpen: _m, onMobileClose: _c }: Props) {
             {/* Brand */}
             <div className="sidebar-brand">
                 <div className="brand-logo">
-                    <img src="/logo.png" alt="Clinic Pro" className="brand-img" />
+                    <img src="/logo.svg" alt="Clinic Pro" className="brand-img" />
                 </div>
                 <div className="brand-text">
                     <b>ClinicPro</b>

assets/admin/pages/LoginPage.tsx

@@ -187,7 +187,7 @@ export default function LoginPage() {
 
         <div style={{ textAlign: 'center', marginBottom: 28 }}>
           <div className="brand-logo" style={{ margin: '0 auto 16px', width: 54, height: 54, borderRadius: 16 }}>
-            <img src="/logo.png" alt="Clinic Pro" className="brand-img" />
+            <img src="/logo.svg" alt="Clinic Pro" className="brand-img" />
           </div>
           <h1 style={{ fontSize: 22, fontWeight: 800, marginBottom: 6 }}>ورود به پنل</h1>
           <p className="muted" style={{ fontSize: 13 }}>