feat: filter pings

apps/monitor/src/runner.rs

@@ -343,7 +343,19 @@ fn run_check_blocking(
     }
 
     const MAX_BODY: usize = 10 * 1024 * 1024;
-    let body_str = resp.body_mut().read_to_string().unwrap_or_default();
+    let body_str = match resp.body_mut().read_to_string() {
+        Ok(s) => s,
+        Err(e) => {
+            // Try reading as raw bytes (e.g. compressed or non-UTF-8 responses)
+            let mut buf = Vec::new();
+            let _ = std::io::Read::read_to_end(resp.body_mut().as_reader(), &mut buf);
+            if buf.is_empty() {
+                format!("[failed to read body: {}]", e)
+            } else {
+                String::from_utf8_lossy(&buf).into_owned()
+            }
+        }
+    };
     let body_out = if body_str.len() > MAX_BODY {
         format!("[body truncated: {} bytes]", body_str.len())
     } else {