chore: restore product scaffold to rollback baseline

crates/chanora_diagnostics/src/lib.rs

@@ -774,6 +774,11 @@ impl ProtocolEventRecorder {
     pub fn drain(&mut self) -> Vec<String> {
         std::mem::take(&mut self.events)
     }
+
+    /// Snapshot all recorded events without clearing the buffer.
+    pub fn snapshot(&self) -> Vec<String> {
+        self.events.clone()
+    }
 }
 
 impl Default for ProtocolEventRecorder {
@@ -1080,4 +1085,17 @@ mod tests {
             "explicit with_android_audio(None) must also omit the section"
         );
     }
+
+    #[test]
+    fn protocol_event_snapshot_does_not_drain_buffer() {
+        let mut recorder = ProtocolEventRecorder::new(4);
+        recorder.record_connected("Server");
+
+        let first = recorder.snapshot();
+        let second = recorder.snapshot();
+        let drained = recorder.drain();
+
+        assert_eq!(first, second);
+        assert_eq!(drained, first);
+    }
 }