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  (unused, superseded by paginateVersions) and unused exception classes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/services/parameter_writability.ts

@@ -1,18 +1,20 @@
 import { createRequire } from 'node:module'
-import type { DeviceSnapshot } from '../domain/device/device.js'
-import type { Device } from '../domain/device/device.js'
-import { DeviceParameter } from '../domain/device/device_parameter.js'
+import type { DeviceSnapshot } from '#domain/device/device'
+import type { Device } from '#domain/device/device'
+import { DeviceParameter } from '#domain/device/device_parameter'
 
 const require = createRequire(import.meta.url)
-const tr181Catalog: Array<{ path: string; writable: boolean; deviceClass: string; type?: string }> =
-  require('../../config/tr181-catalog.json')
+const tr181Catalog: Array<{
+  path: string
+  writable: boolean
+  deviceClass: string
+  type?: string
+}> = require('../../config/tr181-catalog.json')
 
 // Index chargé une fois au démarrage — O(1) lookup
 const catalogIndex = new Map(tr181Catalog.map((e) => [e.path, e.writable]))
 const catalogTypeIndex = new Map(tr181Catalog.map((e) => [e.path, e.type || 'xsd:string']))
-const catalogWritableIndex = new Set(
-  tr181Catalog.filter((e) => e.writable).map((e) => e.path)
-)
+const catalogWritableIndex = new Set(tr181Catalog.filter((e) => e.writable).map((e) => e.path))
 
 /** Remplace les segments numériques par {i} pour matcher les entrées du catalogue */
 export function normalizePath(path: string): string {
@@ -69,7 +71,15 @@ export function reclassifyDeviceFromCatalog(device: Device): number {
       const snap = prop.toSnapshot()
       const catalogType = catalogTypeIndex.get(normalized) || snap.type
       device.setParameter(
-        new DeviceParameter(snap.name, snap.value, catalogType as any, snap.createdAt, snap.updatedAt, snap.notification, snap.accessList)
+        new DeviceParameter(
+          snap.name,
+          snap.value,
+          catalogType as any,
+          snap.createdAt,
+          snap.updatedAt,
+          snap.notification,
+          snap.accessList
+        )
       )
       ;(device as any)._properties.delete(prop.name)
       reclassified++