fix(state): handle BufferParamsEvent::Failed to prevent silent hang

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/state.rs

@@ -935,8 +935,8 @@ impl<S: CaptureSource> Dispatch<ZwpLinuxDmabufFeedbackV1, ()> for State<S> {
 
 impl<S: CaptureSource> Dispatch<ZwpLinuxBufferParamsV1, ()> for State<S> {
     fn event(
-        _state: &mut Self,
-        _proxy: &ZwpLinuxBufferParamsV1,
+        state: &mut Self,
+        proxy: &ZwpLinuxBufferParamsV1,
         event: <ZwpLinuxBufferParamsV1 as Proxy>::Event,
         _data: &(),
         _conn: &wayland_client::Connection,
@@ -948,6 +948,21 @@ impl<S: CaptureSource> Dispatch<ZwpLinuxBufferParamsV1, ()> for State<S> {
             }
             BufferParamsEvent::Failed => {
                 tracing::error!("DMA-BUF buffer creation failed");
+                state.errored = true;
+                match mem::replace(&mut state.in_flight_surface, InFlightSurface::None) {
+                    InFlightSurface::CopyQueued {
+                        surface: _,
+                        drm_map: _,
+                        frame: _,
+                        buffer,
+                    } => {
+                        drop(buffer);
+                    }
+                    other => {
+                        state.in_flight_surface = other;
+                    }
+                }
+                proxy.destroy();
             }
             _ => {}
         }