Extend CI export matrix with Windows 11 x64 and ARM64 samples

docs/implementation-status.md

@@ -59,8 +59,10 @@ and compilation do not close these:
    statuses, policies and fixture/environment identities (issue #3).
 2. Complete historical and ARM64 ABI/structure verification and runtime tests.
    The [published export matrix](ci-api-compatibility.md) now covers all ten
-   named APIs across ten exact Windows 10/11 x64 CI files, including 19041.1,
-   19041.1865 and 22000.318 ISO samples. This closes the initial export-presence
+   named APIs across thirteen exact Windows 10/11 x64 and ARM64 CI files.
+   Windows 11 ISO extraction adds 23H2 x64 and 22H2/24H2 ARM64 observations.
+   The ARM64 observations establish export presence; their structure layouts
+   and runtime behavior remain unverified. This closes the initial export-presence
    matrix; additional releases, servicing revisions and architectures remain
    unsampled. It does not certify ABI or runtime behavior. The six 1507–1803
    sampled bodies establish the