Merge claude/windows-startup-performance-a615bc: precompile the macOS and Linux publishes too

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/DodoSSH.Client.App/DodoSSH.Client.App.csproj

@@ -91,10 +91,10 @@
     <InvariantGlobalization>false</InvariantGlobalization>
 
     <!--
-      Precompiled, on a Windows publish, because a cold start here is mostly the JIT. The runtime pack's
-      own assemblies already ship precompiled; ours and every package's — Avalonia, Skia's bindings, EF
-      Core, SSH.NET — ship as IL, and before this every launch compiled the toolkit, the XAML and EF's
-      model building method by method before anything reached the screen.
+      Precompiled, on every desktop publish, because a cold start here is mostly the JIT. The runtime
+      pack's own assemblies already ship precompiled; ours and every package's — Avalonia, Skia's
+      bindings, EF Core, SSH.NET — ship as IL, and before this every launch compiled the toolkit, the XAML
+      and EF's model building method by method before anything reached the screen.
 
       Measured on a self-contained win-x64 publish, warm disk, median of six launches: the splash from
       735 ms to 536 ms after the process starts, and the main window idle on its first screen from 2.6 s
@@ -103,12 +103,19 @@
       application opened many times a day and installed once — and it is a fifth of what dropping the
       native symbols below saves, so the first install is still far smaller than it once was.
 
+      The numbers above are Windows's, and only Windows has been timed. macOS and Linux take the same
+      publish — osx-arm64 and linux-x64 are cross-compiled on the same Linux runner, and ReadyToRun code
+      lives inside the managed assemblies, so neither the per-dylib signing loop in release-macos.sh nor
+      the RPM's library scan sees a new file: both publishes list exactly the same files with it as
+      without. They grow the same way Windows's does, osx-arm64 from 141 MB to 192 MB and linux-x64 from
+      130 MB to 172 MB. On macOS it runs under the allow-jit entitlement the JIT already needs. Whether they gain as much is unmeasured; that they gain at all is the runtime's own
+      bet, since its framework assemblies ship precompiled for both.
+
       Conditioned on the RID rather than set outright, so a plain `dotnet build`, `dotnet run` and every
       test project referencing this one are untouched: ReadyToRun is a publish step and needs a RID to
-      target. Windows only for now, because Windows is where it was measured; macOS and Linux publish the
-      same way and would very likely gain the same, but nothing here has timed them.
+      target.
     -->
-    <PublishReadyToRun Condition="$(RuntimeIdentifier.StartsWith('win-'))">true</PublishReadyToRun>
+    <PublishReadyToRun Condition="'$(RuntimeIdentifier)' != ''">true</PublishReadyToRun>
   </PropertyGroup>
 
   <ItemGroup>