Remove PNG icon dependency

apps/ehr/app/layout.tsx

@@ -2,7 +2,6 @@ import type { ReactNode } from "react";
 
 import type { Metadata } from "next";
 import { IBM_Plex_Sans, Source_Serif_4 } from "next/font/google";
-import ehrgymIcon from "../../../ehrgym_icon.png";
 
 import "./globals.css";
 
@@ -20,12 +19,7 @@ const bodyFont = Source_Serif_4({
 
 export const metadata: Metadata = {
   title: "EHRGym",
-  description: "Clinical charting workspace for computer-use agents",
-  icons: {
-    icon: ehrgymIcon.src,
-    shortcut: ehrgymIcon.src,
-    apple: ehrgymIcon.src
-  }
+  description: "Clinical charting workspace for computer-use agents"
 };
 
 export default function RootLayout({ children }: Readonly<{ children: ReactNode }>) {

apps/ehr/components/app-brand.tsx

@@ -1,7 +1,5 @@
-import Image from "next/image";
 import Link from "next/link";
 import type { Route } from "next";
-import ehrgymIcon from "../../../ehrgym_icon.png";
 
 type AppBrandProps = {
   title: string;
@@ -14,7 +12,14 @@ export function AppBrand({ title, subtitle, href = "/", compact = false }: AppBr
   const content = (
     <>
       <span className={compact ? "app-brand__logo app-brand__logo--compact" : "app-brand__logo"} aria-hidden="true">
-        <Image src={ehrgymIcon} alt="" draggable={false} priority={compact ? false : true} />
+        <svg viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg" focusable="false">
+          <rect x="3" y="3" width="42" height="42" rx="12" fill="#eef2ff" stroke="#c7d2fe" strokeWidth="2" />
+          <path d="M17 16.5H31" stroke="#4338ca" strokeWidth="3" strokeLinecap="round" />
+          <path d="M17 24H28" stroke="#4338ca" strokeWidth="3" strokeLinecap="round" />
+          <path d="M17 31.5H25" stroke="#4338ca" strokeWidth="3" strokeLinecap="round" />
+          <path d="M31.5 18.5V29.5" stroke="#1d4ed8" strokeWidth="3" strokeLinecap="round" />
+          <path d="M26 24H37" stroke="#1d4ed8" strokeWidth="3" strokeLinecap="round" />
+        </svg>
       </span>
       <span className={compact ? "app-brand__copy app-brand__copy--compact" : "app-brand__copy"}>
         <strong>{title}</strong>