docs: CHANGELOG and credits for macOS perf CI fix (PR #931)

CHANGELOG.md

@@ -333,6 +333,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Fixed
 
+### macOS CI — performance CPU snapshot build
+
+**By [@cucadmuh](https://github.com/cucadmuh), PR [#931](https://github.com/Psychotoxical/psysonic/pull/931)**
+
+* `aarch64-apple-darwin` builds no longer fail in `perf.rs`: host total CPU ticks on macOS use Mach `host_processor_info` instead of BSD-only `sysctl` constants missing from `libc` on Darwin.
+
 ### CI — npmDepsHash on app-v* tags
 
 **By [@cucadmuh](https://github.com/cucadmuh), PR [#927](https://github.com/Psychotoxical/psysonic/pull/927)**

src/config/settingsCredits.ts

@@ -140,6 +140,7 @@ const CONTRIBUTOR_ENTRIES = [
       'Analytics: library backfill scan phase/cursor persistence so advanced indexing can finish large libraries (PR #882)',
       'Analytics: Opus waveform/LUFS/enrichment decode via symphonia-adapter-libopus in the analysis pipeline (PR #883)',
       'Artist page: top-track thumbnails use the same album cover path and warm batch as the albums grid (PR #886)',
+      'Perf: macOS host CPU ticks via Mach host_processor_info — fixes aarch64-apple-darwin CI build (PR #931)',
     ],
   },
   {