Recover stashed driver-gaps work from pre-v2-mxgw-merge working tree

Captures uncommitted work that lived in the working tree on
v2-mxgw-integration but was orthogonal to the migration. Stashed
during the v2-mxgw merge to master (2026-04-30) and replanted here on
a feature branch off master so it's git-visible rather than living in
the stash list.

Two distinct buckets:

1. Tracked fixture/config refinements (10 files, ~36 lines):
   - scripts/e2e/test-opcuaclient.ps1
   - src/ZB.MOM.WW.OtOpcUa.Admin/appsettings.json
   - 5 docker-compose.yml under tests/.../IntegrationTests/Docker/
     (AbCip, Modbus, OpcUaClient, S7)
   - 4 fixture .cs files (AbServerFixture, ModbusSimulatorFixture,
     OpcPlcFixture, Snap7ServerFixture)

2. Untracked driver-gaps queue artifacts (~8000 lines):
   - docs/plans/{abcip,ablegacy,focas,opcuaclient,s7,twincat}-plan.md
     — per-driver gap plans
   - docs/featuregaps.md — cross-cutting analysis
   - docs/v2/focas-deployment.md, docs/v2/implementation/focas-simulator-plan.md
   - followup.md — auto/driver-gaps queue follow-ups
   - scripts/queue/ — PR-queue automation tooling (12 files including
     pr-manifest.yaml at 1473 lines)

This commit is a snapshot for recoverability — review and split into
focused PRs (or discard) before merging anywhere downstream.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests/AbServerFixture.cs

@@ -8,7 +8,7 @@ namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests;
 ///     Reachability probe for the <c>ab_server</c> Docker container (libplctag's CIP
 ///     simulator built via <c>Docker/Dockerfile</c>) or any real AB PLC the
 ///     <c>AB_SERVER_ENDPOINT</c> env var points at. Parses
-///     <c>AB_SERVER_ENDPOINT</c> (default <c>localhost:44818</c>) + TCP-connects
+///     <c>AB_SERVER_ENDPOINT</c> (default <c>10.100.0.35:44818</c>) + TCP-connects
 ///     once at fixture construction. Tests skip via <see cref="AbServerFactAttribute"/>
 ///     / <see cref="AbServerTheoryAttribute"/> when the port isn't live, so
 ///     <c>dotnet test</c> stays green on a fresh clone without Docker running.
@@ -28,7 +28,7 @@ public sealed class AbServerFixture : IAsyncLifetime
     /// instantiate the fixture with the profile matching their compose-file service.</summary>
     public AbServerProfile Profile { get; }
 
-    public string Host { get; } = "127.0.0.1";
+    public string Host { get; } = "10.100.0.35";
     public int Port { get; } = AbServerProfile.DefaultPort;
 
     public AbServerFixture() : this(KnownProfiles.ControlLogix) { }
@@ -59,7 +59,7 @@ public sealed class AbServerFixture : IAsyncLifetime
         TcpProbe(ResolveHost(), ResolvePort());
 
     private static string ResolveHost() =>
-        Environment.GetEnvironmentVariable(EndpointEnvVar)?.Split(':', 2)[0] ?? "127.0.0.1";
+        Environment.GetEnvironmentVariable(EndpointEnvVar)?.Split(':', 2)[0] ?? "10.100.0.35";
 
     private static int ResolvePort()
     {
@@ -84,7 +84,7 @@ public sealed class AbServerFixture : IAsyncLifetime
 
 /// <summary>
 ///     <c>[Fact]</c>-equivalent that skips when ab_server isn't reachable — accepts a
-///     live Docker listener on <c>localhost:44818</c> or an <c>AB_SERVER_ENDPOINT</c>
+///     live Docker listener on <c>10.100.0.35:44818</c> or an <c>AB_SERVER_ENDPOINT</c>
 ///     override pointing at a real PLC.
 /// </summary>
 public sealed class AbServerFactAttribute : FactAttribute

tests/ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests/Docker/docker-compose.yml

@@ -17,6 +17,8 @@ services:
       dockerfile: Dockerfile
     image: otopcua-ab-server:libplctag-release
     container_name: otopcua-ab-server-controllogix
+    labels:
+      project: lmxopcua
     restart: "no"
     ports:
       - "44818:44818"
@@ -40,6 +42,8 @@ services:
       context: .
       dockerfile: Dockerfile
     container_name: otopcua-ab-server-compactlogix
+    labels:
+      project: lmxopcua
     restart: "no"
     ports:
       - "44818:44818"
@@ -63,6 +67,8 @@ services:
       context: .
       dockerfile: Dockerfile
     container_name: otopcua-ab-server-micro800
+    labels:
+      project: lmxopcua
     restart: "no"
     ports:
       - "44818:44818"
@@ -82,6 +88,8 @@ services:
       context: .
       dockerfile: Dockerfile
     container_name: otopcua-ab-server-guardlogix
+    labels:
+      project: lmxopcua
     restart: "no"
     ports:
       - "44818:44818"