docs(xml): fill missing XML doc comments + strip task-tracking refs across src (fixdocs)

Add missing <summary>/<param>/<returns>/<typeparam> tags and switch
interface implementations to <inheritdoc/> across 106 files; strip
project bookkeeping identifiers (Task NN, #05-TNN, PLAN-04, StoreAndForward-0NN)
from shipped code comments while preserving the descriptive rationale.
Comment-only: zero code-logic lines changed; solution builds 0/0.

Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj

src/ZB.MOM.WW.ScadaBridge.Host/Program.cs

@@ -55,7 +55,7 @@ var siteId = configuration["ScadaBridge:Node:SiteId"] ?? "central";
 // Console and file sinks are defined in the `Serilog` configuration
 // section (appsettings.json) and applied via ReadFrom.Configuration inside the
 // factory — the sink set, output template, file path and rolling interval are all
-// configuration-driven per REQ-HOST-8, not hard-coded here.
+// configuration-driven, not hard-coded here.
 Log.Logger = ZB.MOM.WW.ScadaBridge.Host.LoggerConfigurationFactory
     .Build(configuration, nodeRole, siteId, nodeHostname)
     .CreateLogger();
@@ -92,7 +92,7 @@ try
         // TransportOptions from ScadaBridge:Transport via BindConfiguration; no
         // explicit Configure needed.
         builder.Services.AddTransport();
-        // Script-artifact invalidation bus (#05-T14): in-process, per-node pub/sub
+        // Script-artifact invalidation bus: in-process, per-node pub/sub
         // for ScriptArtifactsChanged. The Transport bundle importer publishes
         // post-commit; the Inbound API compiled-handler cache subscribes as the
         // consumer (wired in plan 06). Central-only — it lives beside the importer.
@@ -411,7 +411,7 @@ try
             var methods = await apiRepo.GetAllApiMethodsAsync();
             // Parallel: CompileAndRegister is safe for concurrent callers (ConcurrentDictionary
             // caches, no shared mutable compile state); serial Roslyn compiles stretch the
-            // failover-recovery window at hundreds of methods (arch-review PLAN-06 Task 7).
+            // failover-recovery window at hundreds of methods.
             Parallel.ForEach(methods, method => executor.CompileAndRegister(method));
         }
 
@@ -477,7 +477,7 @@ try
         // Map gRPC service — resolves the singleton SiteStreamGrpcServer from DI
         app.MapGrpcService<ZB.MOM.WW.ScadaBridge.Communication.Grpc.SiteStreamGrpcServer>();
 
-        // REQ-HOST-7: site-shutdown ordering. ApplicationStopping
+        // Site-shutdown ordering. ApplicationStopping
         // fires BEFORE IHostedService.StopAsync runs, so the gRPC server
         // refuses new streams (Unavailable) and cancels every active stream
         // here — clients observe a clean Cancelled and reconnect — and only