style: cargo fmt --all (rustfmt 1.96.0 drift across the re-arch branch)

`cargo fmt --all --check` (ci.yml) was red on main: the client re-architecture
commits and origin's windows-shortcut commit landed with rustfmt violations
(e.g. a 104-char .with_context line in hyprland.rs, an unsorted mod block in
vdisplay.rs, the input.rs `{`-placement CI flagged). Reformat the tree so the
fmt gate passes; no functional changes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/pf-client-core/src/session.rs

@@ -362,9 +362,7 @@ fn pump(
                         // frame) measures true received→decode-complete at zero
                         // pipeline cost. Software/VAAPI keep the synchronous stamp.
                         let hw_fence = match &image {
-                            DecodedImage::VkFrame(v) => {
-                                Some((v.timeline_sem, v.decode_done_value))
-                            }
+                            DecodedImage::VkFrame(v) => Some((v.timeline_sem, v.decode_done_value)),
                             _ => None,
                         };
                         let _ = frame_tx.force_send(DecodedFrame {