fix(ci): windows clippy + rustfmt debt from the D3D11VA push

The windows workflow has been red since a69a83b5: clippy 1.96 rejects the two
field-reassign-with-default view-desc initializers in video_d3d11.rs (now struct
literals), and with clippy failing first, the rustfmt step never ran — cargo fmt
--all had genuine misses queued up in video_d3d11.rs / pf-presenter d3d11.rs +
vk.rs / core abr.rs + client.rs (plus this session's config.rs). Formatting only
beyond the two initializers; no behaviour change.

Verified: clippy -p pf-client-core --all-targets -D warnings clean on the RTX
Windows box, cargo fmt --all --check clean, core lib tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/pf-presenter/src/d3d11.rs

@@ -125,7 +125,12 @@ pub fn import(
             None,
         )
     }
-    .with_context(|| format!("create {}x{} {mp_format:?} external image", frame.width, frame.height))?;
+    .with_context(|| {
+        format!(
+            "create {}x{} {mp_format:?} external image",
+            frame.width, frame.height
+        )
+    })?;
 
     let result = (|| {
         // The handle's importable memory types, intersected with the image's requirement.

crates/pf-presenter/src/vk.rs

@@ -55,7 +55,6 @@ struct HwCtxWin {
     ext_mem_win32: ash::khr::external_memory_win32::Device,
 }
 
-
 /// A submitted hardware frame parked until the in-flight fence proves the GPU reads
 /// done: imported dmabuf planes, or a Vulkan-Video frame (FFmpeg's image — we own only
 /// the plane views; dropping the frame's guard releases the AVFrame back to the pool).
@@ -666,8 +665,11 @@ impl Presenter {
             }
             #[cfg(windows)]
             if win_capable {
-                device_extensions
-                    .extend(crate::d3d11::DEVICE_EXTENSIONS.iter().map(|n| CString::from(*n)));
+                device_extensions.extend(
+                    crate::d3d11::DEVICE_EXTENSIONS
+                        .iter()
+                        .map(|n| CString::from(*n)),
+                );
             }
             if has_hdr_metadata {
                 device_extensions.push(CString::from(ash::ext::hdr_metadata::NAME));