feat: integrate NextForm PNG logo across admin and mobile applications

apps/admin/src/app/page.tsx

@@ -53,9 +53,9 @@ export default function Home() {
           <div className="space-y-3">
             <div className="flex items-center gap-4">
               <img 
-                src="/nextform.png" 
+                src="/nextform-logo.png" 
                 alt="NextForm" 
-                className="h-14 w-14"
+                className="h-14 w-14 object-contain"
               />
               <div className="flex items-center gap-3">
                 <div className="h-12 w-1 bg-gradient-to-b from-blue-600 to-cyan-600 rounded-full"></div>

apps/admin/src/components/Navigation.tsx

@@ -55,9 +55,9 @@ export function Navigation(): ReactElement {
             className="flex items-center gap-3 hover:opacity-80 transition-opacity"
           >
             <img 
-              src="/nextform.png" 
+              src="/nextform-logo.png" 
               alt="NextForm" 
-              className="h-8 w-8"
+              className="h-8 w-8 object-contain"
             />
             <span className="text-lg font-bold bg-gradient-to-r from-blue-600 to-blue-800 bg-clip-text text-transparent">
               NextForm

apps/admin/src/components/ui/Sidebar.tsx

@@ -70,9 +70,9 @@ export function Sidebar() {
             <div className="p-6 border-b border-slate-800/50">
                 <div className="flex items-center gap-3 justify-center">
                     <img 
-                        src="/nextform.png" 
+                        src="/nextform-logo.png" 
                         alt="NextForm" 
-                        className="h-10 w-10"
+                        className="h-10 w-10 object-contain"
                     />
                     <div>
                         <h1 className="text-lg font-black bg-gradient-to-r from-blue-400 via-cyan-400 to-blue-300 bg-clip-text text-transparent">