fix: add type field to client config in Dashboard and README

The "Connect Your Client" config snippet was missing the transport
type, making it unclear how clients should connect to the gateway.
Added "type": "streamable-http" since that is the transport the
gateway serves.

Closes #51

https://claude.ai/code/session_01V5tgbLyeWrPW5zZ1toRoPZ

Author: claude

README.md

@@ -49,6 +49,7 @@ Add a server in McpMux and every client has it instantly. No files to edit.
 {
   "mcpServers": {
     "mcpmux": {
+      "type": "streamable-http",
       "url": "http://localhost:9315/mcp"
     }
   }

apps/desktop/src/App.tsx

@@ -413,6 +413,7 @@ function DashboardView() {
             <div className="relative">
               <pre className="bg-slate-900 text-slate-100 p-4 rounded-lg text-sm overflow-x-auto font-mono">
 {`"mcpmux": {
+  "type": "streamable-http",
   "url": "${gatewayStatus.url || 'http://localhost:3100'}/mcp"
 }`}
               </pre>
@@ -421,7 +422,7 @@ function DashboardView() {
                 size="sm"
                 className="absolute top-2 right-2"
                 onClick={async () => {
-                  const config = `"mcpmux": {\n  "url": "${gatewayStatus.url || 'http://localhost:3100'}/mcp"\n}`;
+                  const config = `"mcpmux": {\n  "type": "streamable-http",\n  "url": "${gatewayStatus.url || 'http://localhost:3100'}/mcp"\n}`;
                   await navigator.clipboard.writeText(config);
                   setExportSuccess('Config copied to clipboard!');
                   setTimeout(() => setExportSuccess(null), 2000);