feat(freight-api): gate poa paper, fayda identity, foreign passport

- dars delegation paper mandatory wherever poa state changes (named,
  removed, forwarder role applied for/approved), not just onboarding
- ethiopian companies verify owner (and poa, once named) via fayda;
  identity, not general manager, is the verified subject
- foreign companies require a typed owner passport number instead,
  independent of an optional fayda verification
- fanNumber removed from client-writable dtos; server-derived only

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/edr-freight-api/src/seed/file-upload-settings.seeder.ts

@@ -2,6 +2,7 @@ import { Injectable, Logger } from "@nestjs/common";
 import { DataSource } from "typeorm";
 
 import { FileUploadSetting } from "../modules/file-upload-settings/entities/file-upload-setting.entity";
+import { poaDelegationField } from "../modules/file-upload-settings/poa-delegation.constants";
 
 interface OnboardingField {
   fileKey: string;
@@ -17,27 +18,14 @@ interface OnboardingField {
 
 const DOC_EXTENSIONS = ["pdf", "jpg", "jpeg", "png"];
 
-/** fileKey of the delegation letter attached to the Power of Attorney step. */
-export const POA_DELEGATION_FILE_KEY = "poa_delegation_letter";
-
 /**
- * Seeded as optional: the delegation letter is only mandatory once a PoA has
- * been entered, or when the company operates as a freight forwarder. That rule
- * spans form fields as well as files, so it lives in the onboarding gate
- * (companies.service.getOnboardingRequirements) rather than in `isRequired`.
+ * Listed in the sets below only so the reference defaults stay a complete
+ * picture of a company onboarding form. Unlike every other field here, the DARS
+ * delegation paper is not admin-managed: `FileUploadSettingsService.getByCode`
+ * injects it from poa-delegation.constants.ts whether or not a row exists.
  */
-const poaDelegationField = (displayOrder: number): OnboardingField => ({
-  fileKey: POA_DELEGATION_FILE_KEY,
-  fileLabel: "PoA Delegation Letter",
-  helpText:
-    "Signed letter in which the General Manager delegates the representative named above.",
-  isRequired: false,
-  isMultiple: false,
-  maxFiles: 1,
-  allowedExtensions: DOC_EXTENSIONS,
-  maxSizeMb: 10,
-  displayOrder,
-});
+const poaDelegationDefault = (displayOrder: number): OnboardingField =>
+  poaDelegationField(displayOrder) as unknown as OnboardingField;
 
 /** Documents required from an Ethiopian company at onboarding. */
 const ETHIOPIAN_ONBOARDING_FIELDS: OnboardingField[] = [
@@ -75,7 +63,7 @@ const ETHIOPIAN_ONBOARDING_FIELDS: OnboardingField[] = [
     maxSizeMb: 10,
     displayOrder: 3,
   },
-  poaDelegationField(4),
+  poaDelegationDefault(4),
 ];
 
 /** Documents required from a Foreign company at onboarding. */
@@ -124,7 +112,7 @@ const FOREIGN_ONBOARDING_FIELDS: OnboardingField[] = [
     maxSizeMb: 10,
     displayOrder: 4,
   },
-  poaDelegationField(5),
+  poaDelegationDefault(5),
 ];
 
 /** Legacy combined set, kept for the older per-company-type codes. */