release: prepare WinAgent Sandbox MCP v0.1.0HEADmain

Unify the public product name and repository identifier while preserving stable executable, store, AppContainer, namespace, pipe, and mutex identifiers.

Make Directory.Build.props VersionPrefix the application-version source of truth, use SDK-generated assembly metadata, and compare helper compatibility by parsed major/minor/build release identity.

Rebuild the fixed winagent-sandbox-mcp release staging directory from clean defaults, emit versioned ZIP/checksum assets, verify manifests and fresh extraction, and reject local configuration, user state, and test artifacts.

Document release/deployment separation and upgrade responsibilities, add the initial changelog, update operational script paths, and record the v0.1.0 verification results.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/Agent.Windows/Diagnostics/WindowsPlatformCheck.cs b/src/Agent.Windows/Diagnostics/WindowsPlatformCheck.cs
index 89a2106..32086d3 100644
--- a/src/Agent.Windows/Diagnostics/WindowsPlatformCheck.cs
+++ b/src/Agent.Windows/Diagnostics/WindowsPlatformCheck.cs
@@ -36,9 +36,9 @@ public static class WindowsPlatformCheck
             bfe = true;
             if (helper)
             {
-                string current = Assembly.GetEntryAssembly()?.GetName().Version?.ToString(3) ?? "";
+                Version? current = Assembly.GetEntryAssembly()?.GetName().Version;
                 string candidate = FileVersionInfo.GetVersionInfo(helperPath).FileVersion ?? "";
-                version = candidate.StartsWith(current, StringComparison.Ordinal);
+                version = current is not null && HasSameReleaseIdentity(current, candidate);
             }
             return new(platform, profile, bfe, helper, version, null, null);
         }
@@ -47,6 +47,12 @@ public static class WindowsPlatformCheck
         { return new(platform, profile, bfe, helper, version, ex.HResult, ex.Message); }
     }
 
+    internal static bool HasSameReleaseIdentity(Version current, string candidate)
+    {
+        if (!Version.TryParse(candidate, out Version? parsed)) return false;
+        return current.Major == parsed.Major && current.Minor == parsed.Minor && current.Build == parsed.Build;
+    }
+
     private static FwpmEngineClose0SafeHandle OpenBfeReadOnly()
     {
         uint result = PInvoke.FwpmEngineOpen0(10, null, null, out FwpmEngineClose0SafeHandle engine);