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/Server/ZB.MOM.WW.OtOpcUa.Runtime/ScriptedAlarms/EfAlarmActorStateStore.cs

@@ -19,6 +19,9 @@ public sealed class EfAlarmActorStateStore : IAlarmActorStateStore
     private readonly IDbContextFactory<OtOpcUaConfigDbContext> _dbFactory;
     private readonly ILogger<EfAlarmActorStateStore> _logger;
 
+    /// <summary>Initializes a new instance of the EfAlarmActorStateStore.</summary>
+    /// <param name="dbFactory">The factory for creating database contexts.</param>
+    /// <param name="logger">The logger instance.</param>
     public EfAlarmActorStateStore(
         IDbContextFactory<OtOpcUaConfigDbContext> dbFactory,
         ILogger<EfAlarmActorStateStore> logger)
@@ -27,6 +30,10 @@ public sealed class EfAlarmActorStateStore : IAlarmActorStateStore
         _logger = logger;
     }
 
+    /// <summary>Loads the alarm state snapshot from the database.</summary>
+    /// <param name="alarmId">The identifier of the alarm.</param>
+    /// <param name="ct">The cancellation token.</param>
+    /// <returns>The alarm state snapshot, or null if not found.</returns>
     public async Task<AlarmActorStateSnapshot?> LoadAsync(string alarmId, CancellationToken ct)
     {
         using var db = await _dbFactory.CreateDbContextAsync(ct).ConfigureAwait(false);
@@ -43,6 +50,9 @@ public sealed class EfAlarmActorStateStore : IAlarmActorStateStore
             LastAckUser: row.LastAckUser);
     }
 
+    /// <summary>Saves the alarm state snapshot to the database.</summary>
+    /// <param name="snapshot">The alarm state snapshot to save.</param>
+    /// <param name="ct">The cancellation token.</param>
     public async Task SaveAsync(AlarmActorStateSnapshot snapshot, CancellationToken ct)
     {
         using var db = await _dbFactory.CreateDbContextAsync(ct).ConfigureAwait(false);

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/ScriptedAlarms/ScriptedAlarmActor.cs

@@ -49,6 +49,12 @@ public sealed class ScriptedAlarmActor : ReceiveActor
 
     public sealed record StateRestored(ScriptedAlarmActorState State, string? LastAckUser);
 
+    /// <summary>Creates a new Props for a ScriptedAlarmActor with the given configuration and optional dependencies.</summary>
+    /// <param name="config">The alarm configuration.</param>
+    /// <param name="evaluator">The alarm evaluator; defaults to null evaluator if not provided.</param>
+    /// <param name="publisherFactory">Optional factory for creating DPS publishers.</param>
+    /// <param name="stateStore">Optional state store for persistence; defaults to null store if not provided.</param>
+    /// <returns>Akka Props for creating the actor.</returns>
     public static Props Props(
         AlarmConfig config,
         IScriptedAlarmEvaluator? evaluator = null,
@@ -62,9 +68,16 @@ public sealed class ScriptedAlarmActor : ReceiveActor
 
     /// <summary>Legacy single-arg ctor kept for callers that only care about the state machine
     /// (no engine evaluation, no DPS fan-out, no persistence). Equivalent to <c>Props(new AlarmConfig(...))</c>.</summary>
+    /// <param name="alarmId">The alarm identifier, used as both alarm ID and name.</param>
+    /// <returns>Akka Props for creating the actor with minimal configuration.</returns>
     public static Props Props(string alarmId) =>
         Props(new AlarmConfig(alarmId, alarmId, EquipmentPath: "", Severity: 500, Predicate: null));
 
+    /// <summary>Initializes a new ScriptedAlarmActor with the given configuration and dependencies.</summary>
+    /// <param name="config">The alarm configuration.</param>
+    /// <param name="evaluator">The alarm predicate evaluator.</param>
+    /// <param name="publisherFactory">Optional factory for creating DPS publishers.</param>
+    /// <param name="stateStore">The state store for loading and saving alarm state.</param>
     public ScriptedAlarmActor(
         AlarmConfig config,
         IScriptedAlarmEvaluator evaluator,
@@ -83,6 +96,7 @@ public sealed class ScriptedAlarmActor : ReceiveActor
         Receive<StateRestored>(OnStateRestored);
     }
 
+    /// <inheritdoc />
     protected override void PreStart()
     {
         // Load persisted state — when the store has a row, restore in-memory state before the