added ServerConfigurationMapping

split up Abstractions so we have one type per file.

pgLabII.PgUtils/ConnectionStrings/IConnectionStringService.cs

@@ -0,0 +1,18 @@
+using FluentResults;
+
+namespace pgLabII.PgUtils.ConnectionStrings;
+
+/// <summary>
+/// High-level service to detect, parse, format and convert between formats.
+/// Implementations will compose specific codecs.
+/// </summary>
+public interface IConnectionStringService
+{
+    Result<ConnStringFormat> DetectFormat(string input);
+
+    Result<ConnectionDescriptor> ParseToDescriptor(string input);
+
+    Result<string> FormatFromDescriptor(ConnectionDescriptor descriptor, ConnStringFormat targetFormat);
+
+    Result<string> Convert(string input, ConnStringFormat targetFormat);
+}