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.AuditLog/Central/GrpcPullSiteCallsClient.cs

@@ -101,7 +101,7 @@ public sealed class GrpcPullSiteCallsClient : IPullSiteCallsClient
             // EnsureUtc keeps Timestamp.FromDateTime happy (it requires UTC kind).
             SinceUtc = Timestamp.FromDateTime(EnsureUtc(sinceUtc)),
             BatchSize = batchSize,
-            // Composite-keyset tiebreak (Task 16). proto3 has no nullable string —
+            // Composite-keyset tiebreak. proto3 has no nullable string —
             // an unset/empty AfterId is the site's signal to keep the legacy
             // inclusive-timestamp contract (also what a first pull sends).
             AfterId = afterId ?? string.Empty,
@@ -110,7 +110,7 @@ public sealed class GrpcPullSiteCallsClient : IPullSiteCallsClient
         var (reply, transportFault) = await TryInvokeAsync(endpoint, request, siteId, ct)
             .ConfigureAwait(false);
 
-        // NodeB failover (Task 18): a transport fault against the primary (NodeA)
+        // NodeB failover: a transport fault against the primary (NodeA)
         // dials the fallback (NodeB) ONCE before collapsing to empty, so a NodeA
         // outage doesn't take the reconciliation loss-recovery net offline. Only
         // the transport-fault set triggers this (not a mapping/unexpected fault),