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.NotificationOutbox/SmsOptions.cs

@@ -40,7 +40,13 @@ public sealed class SmsOptions
 /// </summary>
 public sealed class SmsOptionsValidator : IValidateOptions<SmsOptions>
 {
-    /// <inheritdoc />
+    /// <summary>
+    /// Validates that a bound <see cref="SmsOptions"/> instance is usable, failing
+    /// fast at startup if any value is not strictly positive.
+    /// </summary>
+    /// <param name="name">The named options instance being validated, or <c>null</c> for the default instance.</param>
+    /// <param name="options">The bound <see cref="SmsOptions"/> instance to validate.</param>
+    /// <returns>A successful result, or a failure result listing every invalid field.</returns>
     public ValidateOptionsResult Validate(string? name, SmsOptions options)
     {
         ArgumentNullException.ThrowIfNull(options);