feat: Add DevicesAPIService for device-to-folder management

[CrazyLegsCooper-Qumodity]

feat: Add DevicesAPIService for device-to-folder management

Problem

The SDK has Devices and DevicesPut model structs generated from the OpenAPI spec (model_devices.go, model_devices_put.go), but no API service is wired up to actually call the Devices endpoints. This means consumers of the SDK — including the Terraform provider — have no way to list, read, or update devices (e.g. moving firewalls between folders).

Solution

Add a DevicesAPIService to the config_setup package that exposes three operations:

Method	HTTP	Endpoint	Purpose
ListDevices	GET	/config/setup/v1/devices	List devices with optional limit, offset, and folder filter
GetDeviceByID	GET	/config/setup/v1/devices/{id}	Retrieve a single device by UUID
UpdateDeviceByID	PUT	/config/setup/v1/devices/{id}	Update mutable fields (folder, description, display_name, labels, snippets)

There is no Create or Delete — devices are onboarded externally (e.g. via Azure vWAN or Panorama) and cannot be created or removed through this API.

Changes

Modified files:

• generated/config_setup/client.go — added DevicesAPI *DevicesAPIService field to APIClient and wired it in NewAPIClient()

New files:

• generated/config_setup/api_devices.go — full DevicesAPIService implementation with ListDevices, GetDeviceByID, and UpdateDeviceByID, following the exact same patterns as api_folders.go
• generated/config_setup/model_devices_list_response.go — DevicesListResponse struct (wraps []Devices with Limit, Offset, Total pagination fields)
• generated/config_setup/test/api_devices_test.go — integration tests: List, ListWithFolderFilter, GetByID, UpdateByID (with restore), GetByID_NotFound

Existing models used (not modified)

• model_devices.go — Devices struct with ~40 fields (Id, Name, Folder required; all others optional)
• model_devices_put.go — DevicesPut struct with 5 mutable fields (Description, DisplayName, Folder, Labels, Snippets)

Testing

• 5 integration tests following the existing api_snippets_test.go pattern
• Tests require live SCM credentials via config/scm-config.json
• go build ./... compiles clean
• Test file compiles clean via go test -c

Motivation

This is the prerequisite for adding scm_device resource and data sources to the Terraform provider, enabling users to move firewalls into the correct folder hierarchy via Terraform.