v3 B1-WP6: migrate Core + Server test projects to greenfield schema

Fix TESTS only (production already green) so the four in-scope test projects
compile + pass under the v3 dark address space:

- Core.Abstractions.Tests: drop AllowedNamespaceKinds/NamespaceKindCompatibility
  from DriverTypeMetadata; rewrite EquipmentTagRefResolver tests to the single-func
  RawPath-lookup contract (no parseRef/transient cache).
- Core.Tests: rewrite EquipmentNodeWalkerTests to EquipmentNamespaceContent(Areas,
  Lines,Equipment,VirtualTags?,ScriptedAlarms?) — folders + VirtualTags +
  ScriptedAlarms only; raw-tag variables dark (skipped Batch-4 placeholder). Drop
  retired Equipment.DriverInstanceId.
- Runtime.Tests: rewrite golden corpus + TagConfigCorpusParityTests to the v3
  RawPath/RawTagEntry round-trip (byte + TagConfigIntent parity; EquipmentTags dark).
  Salvage VirtualTag + ScriptedAlarm artifact parity to the new Compose signature.
  Retire the equipment-tag-materialization parity files (Array/Historize/Alias) and
  the equipment-device-binding DeviceHost parity to documented skipped placeholders.
  Skip 34 dark equipment-tag routing/value/alarm/write/discovery actor tests with a
  shared DarkAddressSpaceReasons constant. Re-key cluster-scoped tests to v3 UNS
  line->area attribution.
- ControlPlane.Tests: ConfigComposer round-trips re-keyed to RawFolder/Device (no
  Namespaces); tag-config gate resolves driver via Device; deploy-gate collision test
  re-keyed to UnsEffectiveNameCollision; drop retired BadCrossClusterNamespaceBinding
  case.

tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverHostActorNativeAlarmTests.cs

@@ -54,7 +54,7 @@ public sealed class DriverHostActorNativeAlarmTests : RuntimeActorTestBase
     /// <see cref="OpcUaPublishActor.AlarmStateUpdate"/> with <c>State.Active == true</c>. The event carries a
     /// production-shaped <c>SourceNodeId</c> (the bare owning object, distinct from <c>ConditionId</c>) so the
     /// lookup is proven to key on <c>ConditionId</c>, not <c>SourceNodeId</c>.</summary>
-    [Fact]
+    [Fact(Skip = DarkAddressSpaceReasons.EquipmentTagsDarkBatch4)]
     public void Native_alarm_raise_routes_to_folder_scoped_condition_NodeId_active()
     {
         var db = NewInMemoryDbFactory();
@@ -110,7 +110,7 @@ public sealed class DriverHostActorNativeAlarmTests : RuntimeActorTestBase
     /// publishes exactly one <see cref="AlarmTransitionEvent"/> to the cluster <c>alerts</c> topic with
     /// <c>AlarmId</c> = the folder-scoped condition NodeId, alongside the (ungated) OPC UA condition
     /// update. No <see cref="RedundancyStateChanged"/> is sent, so the cached role is unknown ⇒ emit.</summary>
-    [Fact]
+    [Fact(Skip = DarkAddressSpaceReasons.EquipmentTagsDarkBatch4)]
     public void Native_alarm_publishes_AlarmTransitionEvent_to_alerts_when_primary()
     {
         var db = NewInMemoryDbFactory();
@@ -159,7 +159,7 @@ public sealed class DriverHostActorNativeAlarmTests : RuntimeActorTestBase
     /// (<c>historizeToAveva is not false</c>) suppresses the durable AVEVA write — the same opt-out the
     /// scripted-alarm plan flag drives. The live <c>/alerts</c> fan-out is unaffected (the transition still
     /// publishes; only the durable row is gated downstream).</summary>
-    [Fact]
+    [Fact(Skip = DarkAddressSpaceReasons.EquipmentTagsDarkBatch4)]
     public void Native_alarm_historizeToAveva_false_threads_through()
     {
         var db = NewInMemoryDbFactory();
@@ -191,7 +191,7 @@ public sealed class DriverHostActorNativeAlarmTests : RuntimeActorTestBase
     /// <summary>Native-alarm HistorizeToAveva opt-IN (Task 3): an explicit <c>historizeToAveva: true</c>
     /// rides through as <c>true</c> (distinct from the absent ⇒ null default-on case) so an operator who
     /// deliberately opts in is recorded as such on the transition.</summary>
-    [Fact]
+    [Fact(Skip = DarkAddressSpaceReasons.EquipmentTagsDarkBatch4)]
     public void Native_alarm_historizeToAveva_true_threads_through()
     {
         var db = NewInMemoryDbFactory();
@@ -222,7 +222,7 @@ public sealed class DriverHostActorNativeAlarmTests : RuntimeActorTestBase
     /// MUST still write the local OPC UA condition node (ungated — keeps the standby's address space warm
     /// for failover) but MUST NOT publish the cluster-wide <c>alerts</c> transition (the Primary publishes
     /// the single fleet-wide copy).</summary>
-    [Fact]
+    [Fact(Skip = DarkAddressSpaceReasons.EquipmentTagsDarkBatch4)]
     public void Secondary_node_suppresses_alerts_publish_but_still_updates_condition()
     {
         var db = NewInMemoryDbFactory();
@@ -261,7 +261,7 @@ public sealed class DriverHostActorNativeAlarmTests : RuntimeActorTestBase
     /// <c>Comment</c> carries the operator string and <c>User</c> is <c>"device"</c> (a non-null comment
     /// signals the upstream alarm system provided an operator origin, but without a specific user identity).
     /// </summary>
-    [Fact]
+    [Fact(Skip = DarkAddressSpaceReasons.EquipmentTagsDarkBatch4)]
     public void Native_alarm_operator_comment_flows_to_transition_event()
     {
         var db = NewInMemoryDbFactory();