Checks if an application is currently running.

Checks if we can connect to a Scenic MCP server on the given port.

Starts a Scenic application with MCP server and waits for it to be ready.

This helper handles the common pattern of:

1. Ensuring compilation (needed for mix spex)
2. Starting the application
3. Waiting for MCP server
4. Setting up cleanup

Parameters

• app_name - The application atom (e.g., :quillex)
• opts - Optional configuration
  • :port - MCP server port (default: 9999)
  • :timeout_retries - Connection timeout retries (default: 20)

Returns

• {:ok, context} with app_name and port on success
• Raises on failure

Example

setup_all do
  start_scenic_app(:quillex)
end

Waits for MCP server to be ready with configurable retries.