refactor: move dynamic imports to file headers

- getReferenceEngine import moved to top of cwmp_controller
- Fix makeContext type in configuration_evaluation_state tests

tests/unit/services/cwmp/configuration_evaluation_state.spec.ts

@@ -33,7 +33,10 @@ vi.mock('../../../../app/utils/provisioning_code.js', () => ({
   buildProvisioningCode: () => 'test-prov-code-123',
 }))
 
-import { ConfigurationEvaluationState, ComplianceUpdateState } from '../../../../app/services/cwmp/configuration_evaluation_state.js'
+import {
+  ConfigurationEvaluationState,
+  ComplianceUpdateState,
+} from '../../../../app/services/cwmp/configuration_evaluation_state.js'
 import { Device } from '../../../../app/domain/device/device.js'
 import { DeviceId } from '../../../../app/domain/device/device_id.js'
 import { CWMPTaskQueue } from '../../../../app/services/cwmp/task_queue.js'
@@ -46,6 +49,7 @@ function makeContext(gpnStatus: 'supported' | 'unsupported' = 'supported') {
   return {
     device,
     session: 'sess-1',
+    message: undefined as { success: boolean; data: any } | undefined,
     taskQueue,
     services: { deviceAction: new DeviceActionExecutor(taskQueue) },
   }
@@ -103,9 +107,14 @@ describe('ConfigurationEvaluationState - full happy path', () => {
     expect(r1.response).toContain('Device.DeviceInfo.')
 
     // Step 2: GPN response → next GPN for Device.ManagementServer.
-    context.message = { success: true, data: { ParameterList: { ParameterInfoStruct: [
-      { Name: 'Device.DeviceInfo.Manufacturer', Writable: '0' },
-    ] } } }
+    context.message = {
+      success: true,
+      data: {
+        ParameterList: {
+          ParameterInfoStruct: [{ Name: 'Device.DeviceInfo.Manufacturer', Writable: '0' }],
+        },
+      },
+    }
     const r2 = await state.handle(context)
     expect(r2.response).toContain('GetParameterNames')
     expect(r2.response).toContain('Device.ManagementServer.')