docs(src): fix CommentChecker findings across src/ — 1,032 → 5 (all false positives)

Comment/XML-doc changes only, no code logic:
- strip project-tracking references (WP*, P*-*, row-NN, #NN, Task N) from
  comments, keeping the explanatory rationale
- add missing summaries, <param>, <returns>, <typeparam> and <inheritdoc/>
- replace misused <inheritdoc/> with real docs; where <inheritdoc/> was
  combined with useful remarks, move the rationale into // comments
- drop stale replicationActor <param> on DeploymentManagerActor ctor

Remaining 5 are false positives (CWE-1236 x2, failures-1, year-0001, M365).
Build 0 errors / 0 warnings.

src/ZB.MOM.WW.ScadaBridge.DeploymentManager/SiteSecretsCollector.cs

@@ -14,7 +14,7 @@ namespace ZB.MOM.WW.ScadaBridge.DeploymentManager;
 /// <param name="Missing">References that are absent or tombstoned in the store.</param>
 /// <param name="StoreError">
 /// <see langword="null"/> when every reference was looked up. Otherwise the store read failed
-/// (final review M5: e.g. the shared SQL Server secret store is unreachable), resolution stopped
+/// (e.g. the shared SQL Server secret store is unreachable), resolution stopped
 /// at the first failure, and <see cref="Secrets"/>/<see cref="Missing"/> are INCOMPLETE — the
 /// caller must treat this site as undeployable and its current hash as unknown. The message is
 /// the exception type and message only; it never contains secret material.
@@ -43,7 +43,7 @@ public sealed class SiteSecretsCollector(ISecretStore store)
     /// The resolved rows (mapped field-for-field from <see cref="StoredSecret"/>) and the
     /// references that were absent or tombstoned in the store. A store read failure is
     /// returned as <see cref="SiteSecretsCollection.StoreError"/> rather than thrown, so one
-    /// site's lookup failing never aborts a whole multi-site sweep (final review M5); only
+    /// site's lookup failing never aborts a whole multi-site sweep; only
     /// cancellation of <paramref name="ct"/> propagates. A site whose connections reference no
     /// secret never touches the store at all.
     /// </returns>