fix: fail on refused portal requests and catch black recordings

The portal reports refusals only in OBS's log; a denied, cancelled or failed
source selection now fails with an actionable reason instead of waiting
forever. check --expect-motion rejects black or frozen footage, and the
hardware script checks only runs that recorded, tests restore tokens in their
own step, and treats closing a window as informational: on Hyprland the
stream keeps its last frame, so sessions must end on game exit.

crates/clipbin-obs/src/lib.rs

@@ -12,7 +12,7 @@ pub mod runtime;
 mod thread;
 
 pub use recorder::{
-    Engine, EngineError, Health, RecorderEvent, Recording, RecordingConfig, SEGMENT_EXTENSION,
-    StatusTracker, StopReason, VideoFormat,
+    Engine, EngineError, Health, PipeWireState, RecorderEvent, Recording, RecordingConfig,
+    SEGMENT_EXTENSION, StatusTracker, StopReason, VideoFormat,
 };
 pub use runtime::{RuntimeError, RuntimeLayout};