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.StoreAndForward/StoreAndForwardStorage.cs

@@ -85,7 +85,7 @@ public class StoreAndForwardStorage
         // reads back ParentExecutionId = null (back-compat).
         await AddColumnIfMissingAsync(connection, "parent_execution_id", "TEXT");
 
-        // Additively add the epoch-ms sibling of last_attempt_at (Task 18). The
+        // Additively add the epoch-ms sibling of last_attempt_at. The
         // ISO-8601 text column stays authoritative for reads / back-compat; this
         // INTEGER column drives the due predicate so the sweep no longer parses
         // julianday() per row.
@@ -371,6 +371,7 @@ public class StoreAndForwardStorage
     /// <summary>
     /// Gets all messages that are due for retry (Pending status, last attempt older than retry interval).
     /// </summary>
+    /// <param name="limit">Maximum number of messages to return, or 0 for no limit.</param>
     /// <returns>A task that resolves to the list of messages due for retry, ordered by creation time ascending.</returns>
     public async Task<List<StoreAndForwardMessage>> GetMessagesForRetryAsync(int limit = 0)
     {