Docs: fix dead sample links in the .NET and Python Concepts READMEs

- Google_GeminiChatCompletionWithThinkingBudget was renamed to
  Google_GeminiChatCompletionWithThinking in #13396.
- The Planners samples and RAG/WithFunctionCallingStepwisePlanner were
  removed with the planners in #12399.
- VectorStore_DataIngestion_CustomMapper was removed in #11028.
- The MsGraph plugin entries pointed at Contacts/Drive/Tasks samples that
  do not exist; list the samples that are in Plugins/ instead.
- The Python Search link pointed at a connectors/search directory; the
  module is connectors/search.py.

Author: sarankumar1325

dotnet/samples/Concepts/README.md

@@ -63,7 +63,7 @@ dotnet test -l "console;verbosity=detailed" --filter "FullyQualifiedName=ChatCom
 - [Connectors_WithMultipleLLMs](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Connectors_WithMultipleLLMs.cs)
 - [Google_GeminiChatCompletion](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiChatCompletion.cs)
 - [Google_GeminiChatCompletionStreaming](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiChatCompletionStreaming.cs)
-- [Google_GeminiChatCompletionWithThinkingBudget](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiChatCompletionWithThinkingBudget.cs)
+- [Google_GeminiChatCompletionWithThinking](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiChatCompletionWithThinking.cs)
 - [Google_GeminiChatCompletionWithFile.cs](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiChatCompletionWithFile.cs)
 - [Google_GeminiGetModelResult](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiGetModelResult.cs)
 - [Google_GeminiStructuredOutputs](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/ChatCompletion/Google_GeminiStructuredOutputs.cs)
@@ -143,7 +143,6 @@ dotnet test -l "console;verbosity=detailed" --filter "FullyQualifiedName=ChatCom
 - [TextChunkingAndEmbedding](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/TextChunkingAndEmbedding.cs)
 - [VectorStore_DataIngestion_Simple: A simple example of how to do data ingestion into a vector store when getting started.](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/VectorStore_DataIngestion_Simple.cs)
 - [VectorStore_DataIngestion_MultiStore: An example of data ingestion that uses the same code to ingest into multiple vector stores types.](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/VectorStore_DataIngestion_MultiStore.cs)
-- [VectorStore_DataIngestion_CustomMapper: An example that shows how to use a custom mapper for when your data model and storage model doesn't match.](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/VectorStore_DataIngestion_CustomMapper.cs)
 - [VectorStore_VectorSearch_Simple: A simple example of how to do data ingestion into a vector store and then doing a vector similarity search over the data.](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/VectorStore_VectorSearch_Simple.cs)
 - [VectorStore_VectorSearch_Paging: An example showing how to do vector search with paging.](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/VectorStore_VectorSearch_Paging.cs)
 - [VectorStore_VectorSearch_MultiVector: An example showing how to pick a target vector when doing vector search on a record that contains multiple vectors.](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Memory/VectorStore_VectorSearch_MultiVector.cs)
@@ -160,12 +159,6 @@ dotnet test -l "console;verbosity=detailed" --filter "FullyQualifiedName=ChatCom
 - [FrugalGPTWithFilters](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Optimization/FrugalGPTWithFilters.cs)
 - [PluginSelectionWithFilters](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Optimization/PluginSelectionWithFilters.cs)
 
-### Planners - Examples on using `Planners`
-
-- [AutoFunctionCallingPlanning](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Planners/AutoFunctionCallingPlanning.cs)
-- [FunctionCallStepwisePlanning](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Planners/FunctionCallStepwisePlanning.cs)
-- [HandlebarsPlanning](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Planners/HandlebarsPlanning.cs)
-
 ### Plugins - Different ways of creating and using [`Plugins`](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/src/SemanticKernel.Abstractions/Functions/KernelPlugin.cs)
 
 - [ApiManifestBasedPlugins](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/ApiManifestBasedPlugins.cs)
@@ -188,9 +181,9 @@ dotnet test -l "console;verbosity=detailed" --filter "FullyQualifiedName=ChatCom
 - [ImportPluginFromGrpc](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/ImportPluginFromGrpc.cs)
 - [MsGraph_CalendarPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_CalendarPlugin.cs)
 - [MsGraph_EmailPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_EmailPlugin.cs)
-- [MsGraph_ContactsPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_ContactsPlugin.cs)
-- [MsGraph_DrivePlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_DrivePlugin.cs)
-- [MsGraph_TasksPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_TasksPlugin.cs)
+- [MsGraph_OneDrivePlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_OneDrivePlugin.cs)
+- [MsGraph_OrganizationHierarchyPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_OrganizationHierarchyPlugin.cs)
+- [MsGraph_TaskListPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/MsGraph_TaskListPlugin.cs)
 - [TransformPlugin](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/TransformPlugin.cs)
 - [CopilotAgentBasedPlugins](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/CopilotAgentBasedPlugins.cs)
 - [WebPlugins](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/Plugins/WebPlugins.cs)
@@ -213,7 +206,6 @@ dotnet test -l "console;verbosity=detailed" --filter "FullyQualifiedName=ChatCom
 
 ### RAG - Retrieval-Augmented Generation
 
-- [WithFunctionCallingStepwisePlanner](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/RAG/WithFunctionCallingStepwisePlanner.cs)
 - [WithPlugins](https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Concepts/RAG/WithPlugins.cs)
 
 ### Search - Search services information

python/samples/concepts/README.md

@@ -225,7 +225,7 @@
 - [Simple Chatbot](./reasoning/simple_reasoning.py)
 - [Simple Function Calling](./reasoning/simple_reasoning_function_calling.py)
 
-### Search - Using [`Search`](https://github.com/microsoft/semantic-kernel/tree/main/python/semantic_kernel/connectors/search) services information
+### Search - Using [`Search`](https://github.com/microsoft/semantic-kernel/blob/main/python/semantic_kernel/connectors/search.py) services information
 
 - [Bing Text Search as Plugin](./search/bing_text_search_as_plugin.py)
 - [Brave Text Search as Plugin](./search/brave_text_search_as_plugin.py)