refactor: migrate all internal imports to package.json subpath aliases

- Add #domain, #protocol, #utils aliases to package.json imports map
- Replace all relative imports (./, ../, ../..) in app/ and
  database/mongo_migrations/ with the corresponding #alias imports,
  eliminating relative path traversal across the codebase
- Remove dead code: ConfigurationVersionModel.findByConfigurationIdentifier
  (unused, superseded by paginateVersions) and unused exception classes
  (NotFoundException, UnprocessableEntityException, DatabaseException)
  from app/exceptions/index.ts, keeping only BadRequestException
- Fix pre-existing syntax error in configuration_version.ts (mismatched
  parenthesis) that broke tsc
- Fix eqeqeq violation in configuration_service.ts and isNaN ->
  Number.isNaN in configuration_engine.ts / cwmp-1-0.ts / exchange_controller.ts
- Fix no-shadow violation in cwmp-1-0.ts EventStruct constructor
- Prettier formatting pass on touched files

Validated: tsc --noEmit clean, eslint app/ clean, full test suite green.

app/controllers/devices_controller.ts

@@ -1,7 +1,7 @@
 import type { HttpContext } from '@adonisjs/core/http'
 import DeviceService from '#services/device_service'
-import { PaginationData } from '#services/device_service'
-import { CommandType } from '../domain/commands/command.js'
+import { type PaginationData } from '#services/device_service'
+import { type CommandType } from '#domain/commands/command'
 import DeviceModel from '#models/device'
 
 export default class DevicesController {
@@ -77,10 +77,14 @@ export default class DevicesController {
     const parts: string[] = []
 
     if (pager.first) {
-      parts.push(`<${baseUrl}?offset=${pager.first.offset}&limit=${pager.first.limit}>; rel="first"`)
+      parts.push(
+        `<${baseUrl}?offset=${pager.first.offset}&limit=${pager.first.limit}>; rel="first"`
+      )
     }
     if (pager.previous) {
-      parts.push(`<${baseUrl}?offset=${pager.previous.offset}&limit=${pager.previous.limit}>; rel="prev"`)
+      parts.push(
+        `<${baseUrl}?offset=${pager.previous.offset}&limit=${pager.previous.limit}>; rel="prev"`
+      )
     }
     if (pager.next) {
       parts.push(`<${baseUrl}?offset=${pager.next.offset}&limit=${pager.next.limit}>; rel="next"`)