Move auth stuff to Core.

Author: localden

ModelContextProtocol.sln

@@ -60,6 +60,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProtectedMCPClient", "sampl
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProtectedMCPServer", "samples\ProtectedMCPServer\ProtectedMCPServer.csproj", "{80944644-54DC-2AFF-C60E-9885AD81E509}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ModelContextProtocol.Core", "src\ModelContextProtocol.Core\ModelContextProtocol.Core.csproj", "{9D4F9C2D-D03E-9171-7435-C3589F18CFAF}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -122,6 +124,10 @@ Global
 		{80944644-54DC-2AFF-C60E-9885AD81E509}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{80944644-54DC-2AFF-C60E-9885AD81E509}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{80944644-54DC-2AFF-C60E-9885AD81E509}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9D4F9C2D-D03E-9171-7435-C3589F18CFAF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9D4F9C2D-D03E-9171-7435-C3589F18CFAF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9D4F9C2D-D03E-9171-7435-C3589F18CFAF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9D4F9C2D-D03E-9171-7435-C3589F18CFAF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -142,6 +148,7 @@ Global
 		{85557BA6-3D29-4C95-A646-2A972B1C2F25} = {2A77AF5C-138A-4EBB-9A13-9205DCD67928}
 		{CF41BB82-4E3E-5E86-BCB6-0DF3A1B48CF2} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
 		{80944644-54DC-2AFF-C60E-9885AD81E509} = {02EA681E-C7D8-13C7-8484-4AC65E1B71E8}
+		{9D4F9C2D-D03E-9171-7435-C3589F18CFAF} = {A2F1F52A-9107-4BF8-8C3F-2F6670E7D0AD}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {384A3888-751F-4D75-9AE5-587330582D89}