Summary

This PR resolves the InvalidOperationException being thrown by the cpu-app when accessing the /api/app/test endpoint due to missing storage account connection string configuration.

Root Cause

The application was failing with:

System.InvalidOperationException: Storage account connection string is not configured.

This occurred because:

1. The appsettings.json had an empty connection string: "StorageAccount": ""
2. The infrastructure (main.bicep) didn't provision a storage account
3. No app settings were configured to provide the connection string in production

Changes Made

Infrastructure (main.bicep)

• Added Azure Storage Account resource with unique naming using uniqueString(resourceGroup().id)
• Configured Web App application settings to inject the storage connection string
• Used Standard_LRS storage with Hot access tier for cost-effectiveness

Configuration

• Updated appsettings.json to use "UseDevelopmentStorage=true" for local development
• Added storage configuration to appsettings.Development.json for consistency
• Both now provide valid connection string values instead of empty strings

Testing

• Project builds successfully without errors
• Application starts without configuration exceptions
• The original "Storage account connection string is not configured." error is resolved
• Connection string is properly loaded from configuration (verified with test endpoint)

Production Impact

When deployed, the bicep template will:

1. Create a new storage account with a unique name
2. Automatically configure the Web App with the correct connection string
3. Allow the /api/app/test endpoint to function properly

Fixes #66.

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