feat: implement runtime authentication handling

- Added a new proxy function to manage runtime authentication types and set cookies accordingly.
- Introduced runtime authentication configuration to dynamically adjust UI based on the selected auth type.
- Updated global styles to hide specific authentication buttons based on the current auth type.
- Refactored sign-in button and hero section components to utilize the new runtime authentication logic.
- Created a new utility file for runtime authentication configuration and initialization script.

surfsense_web/proxy.ts

@@ -0,0 +1,24 @@
+import { NextResponse, type NextRequest } from "next/server";
+import { BUILD_TIME_AUTH_TYPE } from "@/lib/env-config";
+import {
+	RUNTIME_AUTH_TYPE_COOKIE_NAME,
+	resolveRuntimeAuthUiMode,
+} from "@/lib/runtime-auth-config";
+
+export function proxy(request: NextRequest) {
+	const response = NextResponse.next();
+	const authType = resolveRuntimeAuthUiMode(process.env.AUTH_TYPE, BUILD_TIME_AUTH_TYPE);
+
+	response.cookies.set(RUNTIME_AUTH_TYPE_COOKIE_NAME, authType, {
+		path: "/",
+		maxAge: 60 * 60 * 24 * 365,
+		sameSite: "lax",
+		secure: request.nextUrl.protocol === "https:",
+	});
+
+	return response;
+}
+
+export const config = {
+	matcher: ["/((?!api|auth|_next/static|_next/image|favicon.ico|.*\\..*).*)"],
+};