docs: complete XML doc coverage (returns, summaries, inheritdoc)

Resolve all 622 issues flagged by the enhanced CommentChecker: add missing
<returns> tags (incl. the standard phrasing on non-generic Task methods),
add missing <summary> tags, and replace misused/redundant <inheritdoc/> on
members that override or implement nothing with real documentation.
Documentation-only — no behavior change; solution builds clean.

src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Shared/ScriptTriggerConfigCodec.cs

@@ -68,6 +68,7 @@ internal static class ScriptTriggerConfigCodec
 
     /// <summary>Classifies a raw <c>TriggerType</c> string (case-insensitive).</summary>
     /// <param name="triggerType">The raw trigger type string from the template script entity.</param>
+    /// <returns>The matching <see cref="ScriptTriggerKind"/>, or <see cref="ScriptTriggerKind.None"/> for null/empty.</returns>
     internal static ScriptTriggerKind ParseKind(string? triggerType)
     {
         if (string.IsNullOrWhiteSpace(triggerType)) return ScriptTriggerKind.None;
@@ -89,6 +90,7 @@ internal static class ScriptTriggerConfigCodec
     /// (invoked explicitly, never throttled), and None/Unknown.
     /// </summary>
     /// <param name="triggerType">The raw trigger type string to classify.</param>
+    /// <returns><see langword="true"/> if the trigger honours <c>MinTimeBetweenRuns</c>; otherwise <see langword="false"/>.</returns>
     internal static bool SupportsMinTimeBetweenRuns(string? triggerType) =>
         ParseKind(triggerType) is ScriptTriggerKind.ValueChange
             or ScriptTriggerKind.Conditional
@@ -96,6 +98,7 @@ internal static class ScriptTriggerConfigCodec
 
     /// <summary>Canonical <c>TriggerType</c> string for a kind; null for None/Unknown.</summary>
     /// <param name="kind">The trigger kind to convert.</param>
+    /// <returns>The canonical trigger-type string, or null for <see cref="ScriptTriggerKind.None"/>/<see cref="ScriptTriggerKind.Unknown"/>.</returns>
     internal static string? KindToString(ScriptTriggerKind kind) => kind switch
     {
         ScriptTriggerKind.Interval => "Interval",
@@ -113,6 +116,7 @@ internal static class ScriptTriggerConfigCodec
     /// </summary>
     /// <param name="json">The raw JSON trigger configuration string.</param>
     /// <param name="kind">The trigger kind, used to determine which fields to parse.</param>
+    /// <returns>A <see cref="ScriptTriggerModel"/> populated from the JSON; defaults are used for absent or malformed fields.</returns>
     internal static ScriptTriggerModel Parse(string? json, ScriptTriggerKind kind)
     {
         var model = new ScriptTriggerModel();
@@ -161,6 +165,7 @@ internal static class ScriptTriggerConfigCodec
     /// </summary>
     /// <param name="model">The trigger model to serialize.</param>
     /// <param name="kind">The trigger kind, used to determine which fields to emit.</param>
+    /// <returns>The JSON configuration string, or null for <see cref="ScriptTriggerKind.None"/>/<see cref="ScriptTriggerKind.Unknown"/>.</returns>
     internal static string? Serialize(ScriptTriggerModel model, ScriptTriggerKind kind)
     {
         if (kind is ScriptTriggerKind.None or ScriptTriggerKind.Unknown) return null;
@@ -214,6 +219,7 @@ internal static class ScriptTriggerConfigCodec
 
     /// <summary>Returns <paramref name="raw"/> if it is a recognized operator, else "&gt;".</summary>
     /// <param name="raw">The raw operator string to normalize.</param>
+    /// <returns>A valid operator string from <see cref="Operators"/>; defaults to "&gt;" for unrecognized input.</returns>
     internal static string NormalizeOperator(string? raw)
     {
         var op = raw?.Trim();