feat(signature): add signature functionality for officers and seafarers

- Implemented MySignaturePad component for officers to draw and upload their signatures.
- Added signature API endpoints for managing officer signatures in the backoffice.
- Created SignaturePad component for seafarers to manage their specimen signatures.
- Updated ProfilePage to include signature tabs for both officers and seafarers.
- Added translations for signature-related terms in English and Amharic.
- Introduced RankTier options for seafarer registration.
- Added tests for canvas-point utility to ensure accurate pointer mapping on signature pad.

libs/api/src/lib/features/seafarer-registration/seafarer-registration.constants.ts

@@ -25,6 +25,19 @@ export const DEPARTMENT_OPTIONS = [
   { value: 'CATERING', label: 'Catering' },
 ];
 
+/**
+ * The STCW limitation a Certificate of Competency is issued under.
+ *
+ * One choice, worded generically, because the threshold it means differs by
+ * department — gross tonnage on deck, propulsion power in the engine room. The
+ * certificate states the department-specific wording; the applicant only picks
+ * which side of the line they serve.
+ */
+export const RANK_TIER_OPTIONS = [
+  { value: 'ABOVE', label: 'Above' },
+  { value: 'BELOW', label: 'Below' },
+];
+
 export const HAIR_COLOR_OPTIONS = [
   { value: 'BLACK', label: 'Black' },
   { value: 'BROWN', label: 'Brown' },
@@ -158,6 +171,7 @@ export const SEAFARER_REGISTRATION_FIELD_LABELS: Record<keyof SeafarerRegistrati
   passportNumber: 'Passport Number',
   passportExpiry: 'Passport Expiry Date',
   department: 'Department',
+  tier: 'Certificate Limitation',
   locationId: 'Location',
   permanentAddress: 'Permanent Address',
   currentAddress: 'Current Address',
@@ -192,7 +206,7 @@ export const SEAFARER_REGISTRATION_SECTIONS: {
   {
     key: 'identity',
     title: 'Identity',
-    fields: ['placeOfBirth', 'passportNumber', 'passportExpiry', 'department'],
+    fields: ['placeOfBirth', 'passportNumber', 'passportExpiry', 'department', 'tier'],
   },
   {
     key: 'address',
@@ -220,6 +234,7 @@ const OPTION_LABELS: Partial<Record<keyof SeafarerRegistrationAnswers, { value:
   gender: GENDER_OPTIONS,
   maritalStatus: MARITAL_STATUS_OPTIONS,
   department: DEPARTMENT_OPTIONS,
+  tier: RANK_TIER_OPTIONS,
   hairColor: HAIR_COLOR_OPTIONS,
   eyeColor: EYE_COLOR_OPTIONS,
   bloodType: BLOOD_TYPE_OPTIONS,

libs/api/src/lib/features/seafarer-registration/seafarer-registration.types.ts

@@ -1,5 +1,8 @@
 import type { SeafarerDepartment } from '../seafarer/seafarer.types';
 
+/** Above/Below — the STCW limitation a Certificate of Competency is issued under. */
+export type RankTier = 'ABOVE' | 'BELOW';
+
 export type SeafarerRegistrationStatus =
   | 'DRAFT'
   | 'SUBMITTED'
@@ -30,6 +33,11 @@ export interface SeafarerRegistrationAnswers {
   passportNumber: string | null;
   passportExpiry: string | null;
   department: SeafarerDepartment | null;
+  /**
+   * The STCW ship-size limitation this seafarer's CoCs are issued under.
+   * Read with `department` to pick the CoC ladder; CoP carries no tier.
+   */
+  tier: RankTier | null;
   locationId: string | null;
   permanentAddress: string | null;
   currentAddress: string | null;