docs: backfill XML documentation across 756 files

Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.

src/Core/ZB.MOM.WW.OtOpcUa.Configuration/LocalCache/ResilientConfigReader.cs

@@ -27,6 +27,12 @@ public sealed class ResilientConfigReader
     private readonly ResiliencePipeline _pipeline;
     private readonly ILogger<ResilientConfigReader> _logger;
 
+    /// <summary>Initializes a resilient config reader with the given cache and options.</summary>
+    /// <param name="cache">The sealed cache for fallback.</param>
+    /// <param name="staleFlag">The stale config flag to manage.</param>
+    /// <param name="logger">The logger instance.</param>
+    /// <param name="timeout">The timeout for central fetch (default 2s).</param>
+    /// <param name="retryCount">The number of retries (default 3).</param>
     public ResilientConfigReader(
         GenerationSealedCache cache,
         StaleConfigFlag staleFlag,
@@ -71,6 +77,9 @@ public sealed class ResilientConfigReader
         @"(?ix)\b(Password|Pwd|User\s*Id|Uid|AccessToken|Authorization|Api[-_]?Key)\s*=\s*[^;,)\s]*",
         RegexOptions.Compiled);
 
+    /// <summary>Redacts sensitive credential information from a message.</summary>
+    /// <param name="message">The message to scrub.</param>
+    /// <returns>The message with redacted credentials.</returns>
     internal static string ScrubSecrets(string? message)
     {
         if (string.IsNullOrEmpty(message)) return message ?? string.Empty;
@@ -80,10 +89,15 @@ public sealed class ResilientConfigReader
     }
 
     /// <summary>
-    ///     Execute <paramref name="centralFetch"/> through the resilience pipeline. On full failure
-    ///     (post-retry), reads the sealed cache for <paramref name="clusterId"/> and passes the
-    ///     snapshot to <paramref name="fromSnapshot"/> to extract the requested shape.
+    ///     Executes a central fetch through the resilience pipeline. On full failure
+    ///     (post-retry), reads the sealed cache and extracts the requested shape.
     /// </summary>
+    /// <typeparam name="T">The type of configuration to read.</typeparam>
+    /// <param name="clusterId">The cluster ID to fetch for.</param>
+    /// <param name="centralFetch">Function to fetch from central DB.</param>
+    /// <param name="fromSnapshot">Function to extract the config from a snapshot.</param>
+    /// <param name="cancellationToken">Cancellation token.</param>
+    /// <returns>The configuration of type T.</returns>
     public async ValueTask<T> ReadAsync<T>(
         string clusterId,
         Func<CancellationToken, ValueTask<T>> centralFetch,