feat: prepare supporter self-hosting

apps/start/src/routes/__root.tsx

@@ -30,6 +30,7 @@ interface MyRouterContext {
   trpc: TRPCOptionsProxy<AppRouter>;
   apiUrl: string;
   dashboardUrl: string;
+  isSelfHosted: boolean;
 }
 
 export const Route = createRootRouteWithContext<MyRouterContext>()({

apps/start/src/routes/api/config.tsx

@@ -0,0 +1,19 @@
+import { Sidebar } from '@/components/sidebar';
+import { getServerEnvs } from '@/server/get-envs';
+import { Outlet, createFileRoute, redirect } from '@tanstack/react-router';
+
+// Nothing sensitive here, its client environment variables which is good for debugging
+export const Route = createFileRoute('/api/config')({
+  server: {
+    handlers: {
+      GET: async () => {
+        const envs = await getServerEnvs();
+        return new Response(JSON.stringify(envs), {
+          headers: {
+            'Content-Type': 'application/json',
+          },
+        });
+      },
+    },
+  },
+});

apps/start/src/routes/api/healthcheck.tsx

@@ -0,0 +1,11 @@
+import { createFileRoute } from '@tanstack/react-router';
+
+export const Route = createFileRoute('/api/healthcheck')({
+  server: {
+    handlers: {
+      GET: async () => {
+        return new Response('OK');
+      },
+    },
+  },
+});