feat(telemetry.serilog): ILogRedactor seam + OTel log export

ZB.MOM.WW.Telemetry/src/ZB.MOM.WW.Telemetry.Serilog/ILogRedactor.cs

@@ -0,0 +1,17 @@
+namespace ZB.MOM.WW.Telemetry.Serilog;
+
+/// <summary>
+/// Seam for project-specific log-event redaction. The shared library applies this via
+/// <see cref="RedactionEnricher"/>; each project provides its own implementation that knows which
+/// fields (by property name) or which command payloads must not leave the process in log events.
+/// If no <see cref="ILogRedactor"/> is registered in DI, <see cref="RedactionEnricher"/> is a no-op.
+/// </summary>
+public interface ILogRedactor
+{
+    /// <summary>
+    /// Inspects and mutates the supplied log-event <paramref name="properties"/> in place — remove
+    /// or replace any sensitive values. Called on every log event before it reaches any sink.
+    /// </summary>
+    /// <param name="properties">The mutable property dictionary for the current log event.</param>
+    void Redact(IDictionary<string, object?> properties);
+}