fix: disable streaming output in wasm-bindgen-test-runner for E2E tests

wasm-bindgen 0.2.115+ introduced incremental DOM scraping that assumes
#output content is append-only. The SSR E2E tests replace #output via
set_inner_html, breaking the offset tracker and causing the runner to
miss test results. WASM_BINDGEN_TEST_NO_STREAM falls back to reading
full text each poll.

Author: Madoshakalaka

tools/ssr-e2e/src/main.rs

@@ -145,6 +145,7 @@ async fn main() -> ExitCode {
     let test_result = Command::new("cargo")
         .args(&cargo_args)
         .env("WASM_BINDGEN_TEST_NO_ORIGIN_ISOLATION", "1")
+        .env("WASM_BINDGEN_TEST_NO_STREAM", "1")
         .status()
         .await;