docs(xmldoc): fill missing XML docs + strip tracking-ID comments across src

Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.

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

@@ -6,7 +6,7 @@ namespace ZB.MOM.WW.OtOpcUa.Configuration.LocalCache;
 ///     LiteDB-backed <see cref="ILocalConfigCache"/>. One file per node (default
 ///     <c>config_cache.db</c>), one collection per snapshot. Corruption surfaces as
 ///     <see cref="LocalConfigCacheCorruptException"/> on construction or read — callers should
-///     delete and re-fetch from the central DB (decision #80).
+///     delete and re-fetch from the central DB.
 /// </summary>
 public sealed class LiteDbConfigCache : ILocalConfigCache, IDisposable
 {
@@ -17,7 +17,7 @@ public sealed class LiteDbConfigCache : ILocalConfigCache, IDisposable
     // instances. When several caches (this one + GenerationSealedCache) initialise in parallel
     // the global mapper races, surfacing as "Member ClusterId not found on BsonMapper" or a
     // bogus "duplicate key _id = 0" (the int auto-id mapping was lost so Insert writes a literal
-    // 0 twice) — Configuration-012. Give each database a private, pre-registered mapper so member
+    // 0 twice). Give each database a private, pre-registered mapper so member
     // resolution happens once, single-threaded, at construction and never touches the global.
     private static BsonMapper BuildMapper()
     {
@@ -30,7 +30,7 @@ public sealed class LiteDbConfigCache : ILocalConfigCache, IDisposable
     private readonly ILiteCollection<GenerationSnapshot> _col;
     // PutAsync is a find-then-insert/update; without serialization, two concurrent puts for the
     // same (ClusterId, GenerationId) can both observe `existing is null` and both Insert,
-    // producing duplicate rows (Configuration-005). Serialize writes through this semaphore so
+    // producing duplicate rows. Serialize writes through this semaphore so
     // the read-modify-write block is atomic for a given instance. LiteDB itself only locks the
     // page-level write, not the find-then-insert window.
     private readonly SemaphoreSlim _writeGate = new(initialCount: 1, maxCount: 1);
@@ -60,9 +60,7 @@ public sealed class LiteDbConfigCache : ILocalConfigCache, IDisposable
         }
     }
 
-    /// <summary>Gets the most recent snapshot for the specified cluster.</summary>
-    /// <param name="clusterId">The cluster ID.</param>
-    /// <param name="ct">Cancellation token.</param>
+    /// <inheritdoc />
     public Task<GenerationSnapshot?> GetMostRecentAsync(string clusterId, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
@@ -73,15 +71,13 @@ public sealed class LiteDbConfigCache : ILocalConfigCache, IDisposable
         return Task.FromResult<GenerationSnapshot?>(snapshot);
     }
 
-    /// <summary>Stores a snapshot in the cache.</summary>
-    /// <param name="snapshot">The snapshot to store.</param>
-    /// <param name="ct">Cancellation token.</param>
+    /// <inheritdoc />
     public async Task PutAsync(GenerationSnapshot snapshot, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
         // Serialize the find-then-insert/update so concurrent callers do not observe a stale
-        // `existing is null` and both Insert (Configuration-005). LiteDB's per-call lock is
-        // not enough — the read and the write are independent calls.
+        // `existing is null` and both Insert. LiteDB's per-call lock is not enough — the
+        // read and the write are independent calls.
         await _writeGate.WaitAsync(ct).ConfigureAwait(false);
         try
         {
@@ -104,10 +100,7 @@ public sealed class LiteDbConfigCache : ILocalConfigCache, IDisposable
         }
     }
 
-    /// <summary>Removes old generation snapshots, keeping only the latest ones.</summary>
-    /// <param name="clusterId">The cluster ID.</param>
-    /// <param name="keepLatest">Number of latest generations to keep.</param>
-    /// <param name="ct">Cancellation token.</param>
+    /// <inheritdoc />
     public Task PruneOldGenerationsAsync(string clusterId, int keepLatest = 10, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();