Failed to retrieve JWT Bearer Token using the az command.

[Menghua1]

Describe:
Following the "Get Your JWT Bearer Token" steps in the README and executing the following commands to obtain the JWT Bearer Token failed:

• az account get-access-token --resource YOUR-ENTRA-APP-CLIENT-ID --query accessToken -o tsv
• az account get-access-token --resource "api://YOUR-ENTRA-APP-CLIENT-ID" --query accessToken -o tsv

In the Azure Portal's App Registration → Expose an API page, only the Application ID URI was set, but the following crucial configurations were missing:

1. Add a scope
2. Authorized client applications: A client application (e.g., Microsoft Azure CLI) needs to be added and authorized with the corresponding scope.

After completing "Add a scope" and "Authorized client applications," obtaining the token using az succeeded.

Repro Steps:

1. Run git clone https://github.com/AzureCosmosDB/MCPToolKit.git and cd MCPToolKit.
2. Deploy Infrastructure via Azure Developer CLI (azd up).
3. Run .\scripts\Deploy-Cosmos-MCP-Toolkit.ps1 -ResourceGroup "YOUR-RESOURCE-GROUP" -EntraAppName "My Custom MCP App".
4. Run az account get-access-token --resource YOUR-ENTRA-APP-CLIENT-ID --query accessToken -o tsv and az account get-access-token --resource "api://YOUR-ENTRA-APP-CLIENT-ID" --query accessToken -o tsv.

Environment:

• OS: Windows

Expected behavior:
The JWT Bearer Token was successfully retrieved via the az command.

@sajeetharan and @hemarina for notification.