move: delete Memex.Portal.Shared and its suite from core (delete half)

.github/scripts/check-module-platform-floor.py

@@ -34,7 +34,8 @@
 `src/MeshWeaver.Plugin.Packaging/NuGetVersionComparer.cs` exactly — numeric core parts compared
 as numbers, a release outranking any pre-release, dot-separated pre-release identifiers compared
 numerically when both are numeric, numeric ranking below alphanumeric, otherwise ordinal — and
-`ModulePlatformFloorScriptParityTest` in `test/Memex.Portal.Shared.Test` pins the two together on
+`ModulePlatformFloorScriptParityTest` in MeshWeaver.Plugins' `src/Memex.Portal.Shared.Test` (it reads
+this script from the pinned platform checkout) pins the two together on
 a table of cases. Two call sites computing the same fold differently either never converge or
 never fire, and both are silent.
 

.github/scripts/release-channels.py

@@ -47,7 +47,7 @@
 REQUIRED_FIELDS = ("id", "tag", "edition", "meaning", "writers", "notation", "status")
 BINDING_FIELDS = ("workflow", "job", "repositories")
 # A label must look like a tag and must NEVER be SELECTABLE as a version. The self-updater
-# (memex/Memex.Portal.Shared/SelfUpdate/VersionSelect.cs) keeps every tag matching
+# (MeshWeaver.Plugins src/Memex.Portal.Shared/SelfUpdate/VersionSelect.cs) keeps every tag matching
 # `PlatformVersionTag` = ^\d+\.\d+\.\d+([-+].*)?$ EXCEPT one ending in `-latest` (`MovingPointer`), so
 # a label of that dotted shape with any other suffix (`3.1.0-mac`) would be rolled to as if it were
 # a build. Both regexes are mirrored here; VersionSelectTest pins the C# side.

.github/scripts/shard-assign.sh

@@ -115,7 +115,7 @@
 #      the numerator instead — PluginCatalog's two parts run ~174 s each, ~36% of
 #      the cap — and it costs nothing, because the parts land on different runners.
 #
-#      Memex.Portal.Shared.Test was the next one: listed at 25 s, it measured 431 s solo on
+#      Memex.Portal.Shared.Test (now in MeshWeaver.Plugins) was the next one: listed at 25 s, it measured 431 s solo on
 #      run 36816633012 (90% of the cap) and was killed at 480 s exit=124 on run 36817124160,
 #      still progressing through its classes, once #5894 added ~28 s of deliberate waits. It
 #      now runs in three parts: the two parts measured 327 and 324 s on
@@ -190,7 +190,6 @@ fi
 
 # "<seconds> <project-name>", heaviest first.
 WEIGHTS=$(cat <<'EOF'
-929 Memex.Portal.Shared.Test 4
 272 MeshWeaver.Hosting.Orleans.Test
 142 MeshWeaver.Data.Test
 522 MeshWeaver.Messaging.Hub.Test 3

.github/workflows/dotnet-test.yml

@@ -994,8 +994,8 @@ jobs:
     # 🚨 This job used to pre-pull `pgvector/pgvector:pg17` from Docker Hub, anonymously, on every
     # shard. Since the Postgres suites left core (the test-move tranches, #2847 and its successors)
     # NO core suite starts a container: nothing references Testcontainers.PostgreSql, and the one
-    # project naming MeshWeaver.Testcontainers (Memex.Portal.Shared.Test) exercises readiness logic
-    # against an in-process host. So the pull fetched an image nothing used — and on 2026-10-09 it
+    # project that named MeshWeaver.Testcontainers (Memex.Portal.Shared.Test, now in
+    # MeshWeaver.Plugins) exercises readiness logic against an in-process host. So the pull fetched an image nothing used — and on 2026-10-09 it
     # was the ONLY red of six shards × several PRs (#6381 among them), Docker Hub answering
     # `toomanyrequests` to the runner pool's shared egress IP. Retrying a per-IP window is not a
     # fix; not asking is.

MeshWeaver.slnx

@@ -14,7 +14,6 @@
     <File Path="samples/Directory.Build.props" />
   </Folder>
   <Folder Name="/memex/">
-    <Project Path="memex/Memex.Portal.Shared/Memex.Portal.Shared.csproj" />
   </Folder>
   <Folder Name="/memex/aspire/">
     <Project Path="memex/aspire/Memex.Aspire.Hosting/Memex.Aspire.Hosting.csproj" />
@@ -93,7 +92,6 @@
     <Project Path="test/MeshWeaver.Hosting.Test/MeshWeaver.Hosting.Test.csproj" />
     <Project Path="test/MeshWeaver.PluginTester.Test/MeshWeaver.PluginTester.Test.csproj" />
     <Project Path="test/MeshWeaver.Portal.E2E.Test/MeshWeaver.Portal.E2E.Test.csproj" />
-    <Project Path="test/Memex.Portal.Shared.Test/Memex.Portal.Shared.Test.csproj" />
     <Project Path="test/MeshWeaver.Testing.Xunit/MeshWeaver.Testing.Xunit.csproj" />
     <Project Path="test/MeshWeaver.Testing.Xunit.Test/MeshWeaver.Testing.Xunit.Test.csproj" />
     <Project Path="test/MeshWeaver.ThumbnailGenerator.Test/MeshWeaver.ThumbnailGenerator.Test.csproj" />