docs(stage0): record Windows Vulkan smoke

docs/baseline/current-project-audit.md

@@ -6,7 +6,7 @@ Baseline command:
 cargo xtask ci
 ```
 
-Result on 2026-06-23:
+Result on 2026-07-18:
 
 - canonical pipeline now uses a fixed MSRV/toolchain, policy checks,
   full-format workspace test command, `clippy`/`doc`/`cargo deny` gates and
@@ -14,7 +14,19 @@ Result on 2026-06-23:
 - `rpath`/offline mode is still useful for synthetic local checks;
 - full online dependency resolution remains unavailable in the sandbox.
 
+Native Vulkan evidence:
+
+- Windows x86_64 local smoke passed on 2026-07-18 with Rust 1.87.0, the
+  system Vulkan loader 1.4.350, and an AMD Radeon Pro WX 3200 Series;
+- the smoke created a Win32 surface and swapchain, presented 300 frames,
+  exercised a controlled resize (three observed resize events and two
+  swapchain recreations), and shut down with zero validation warnings and
+  errors;
+- the result is configuration-specific evidence, not a substitute for the
+  separate Linux and macOS smoke gates.
+
 Scope labels:
 
 - Stage 0 macOS/codebase: closed.
-- Stage 0 cross-platform native runtime and hosted CI: deferred.
+- Stage 0 Windows native runtime: locally evidenced.
+- Stage 0 Linux native runtime and cross-platform hosted CI: deferred.