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  (unused, superseded by paginateVersions) and unused exception classes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/utils/cwmp-events.ts

@@ -31,16 +31,26 @@ export function normalizeEventCode(raw: string): string {
 
   // Numeric-only → expand to standard label
   switch (trimmed) {
-    case '0': return 'BOOTSTRAP'
-    case '1': return 'BOOT'
-    case '2': return 'PERIODIC'
-    case '3': return 'SCHEDULED'
-    case '4': return 'VALUE CHANGE'
-    case '5': return 'KICKED'
-    case '6': return 'CONNECTION REQUEST'
-    case '7': return 'TRANSFER COMPLETE'
-    case '8': return 'DIAGNOSTICS COMPLETE'
-    default: return trimmed
+    case '0':
+      return 'BOOTSTRAP'
+    case '1':
+      return 'BOOT'
+    case '2':
+      return 'PERIODIC'
+    case '3':
+      return 'SCHEDULED'
+    case '4':
+      return 'VALUE CHANGE'
+    case '5':
+      return 'KICKED'
+    case '6':
+      return 'CONNECTION REQUEST'
+    case '7':
+      return 'TRANSFER COMPLETE'
+    case '8':
+      return 'DIAGNOSTICS COMPLETE'
+    default:
+      return trimmed
   }
 }
 

app/utils/inventory_coverage.ts

@@ -1,4 +1,4 @@
-import type { InventoryPath } from '../domain/configuration/configuration.js'
+import type { InventoryPath } from '#domain/configuration/configuration'
 
 /**
  * Checks whether a desired parameter is covered by at least one inventory path.

app/utils/periodic_inform.ts

@@ -11,17 +11,17 @@ export function computeNextPeriodicInform(
 ): Date | null {
   if (!lastPeriodicInformAt) return null
 
-  const intervalSeconds = typeof periodicInformInterval === 'string'
-    ? parseInt(periodicInformInterval, 10)
-    : periodicInformInterval
+  const intervalSeconds =
+    typeof periodicInformInterval === 'string'
+      ? Number.parseInt(periodicInformInterval, 10)
+      : periodicInformInterval
 
   if (!intervalSeconds || intervalSeconds <= 0) return null
 
-  const lastDate = lastPeriodicInformAt instanceof Date
-    ? lastPeriodicInformAt
-    : new Date(lastPeriodicInformAt)
+  const lastDate =
+    lastPeriodicInformAt instanceof Date ? lastPeriodicInformAt : new Date(lastPeriodicInformAt)
 
-  if (isNaN(lastDate.getTime())) return null
+  if (Number.isNaN(lastDate.getTime())) return null
 
   return new Date(lastDate.getTime() + intervalSeconds * 1000)
 }

app/utils/provisioning_code.ts

@@ -1,5 +1,5 @@
 import { createHash } from 'node:crypto'
-import type { Configuration } from '../domain/configuration/configuration.js'
+import type { Configuration } from '#domain/configuration/configuration'
 
 /**
  * Computes a 12-character hex content hash of a Configuration's desired state.

app/utils/schedule_window.ts

@@ -1,4 +1,4 @@
-import type { ScheduleWindow } from '../domain/configuration/configuration.js'
+import type { ScheduleWindow } from '#domain/configuration/configuration'
 
 /**
  * Checks if the current time (or provided time) falls within the schedule window.
@@ -41,10 +41,7 @@ export function isWithinSchedule(schedule: ScheduleWindow | undefined, now?: Dat
 /**
  * Gets the local hour and day-of-week for a given Date in a specific IANA timezone.
  */
-function getLocalTimeParts(
-  date: Date,
-  timezone: string
-): { hour: number; dayOfWeek: number } {
+function getLocalTimeParts(date: Date, timezone: string): { hour: number; dayOfWeek: number } {
   const formatter = new Intl.DateTimeFormat('en-US', {
     timeZone: timezone,
     hour: 'numeric',