Implement Issue #1: User Accounts & Profiles

- Admin-only account creation (no self-registration); invite-token flow
  replaces the public /auth/register endpoint
- New volunteer fields: phone, is_trainee, operational_roles,
  notification_preference, admin_notes, last_login, completed_shifts
- Role-scoped profile editing: volunteers update name/phone only;
  admins update all fields including notes and trainee flag
- /auth/activate endpoint for invite-token-based account activation
- /api/v1/volunteers/{id}/invite for admin to resend invite links
- last_login recorded on each successful authentication

Tests:
- Go: handler tests (auth rules, create, activate, update scoping) via
  Storer/AuthServicer interfaces and fake store; auth unit tests for
  HashPassword, IssueToken, and Parse
- Frontend: RTL tests for Activate, Profile, and Volunteers pages
- Fixed CRA 5 + React Router v7 Jest compatibility (moduleNameMapper +
  TextEncoder polyfill)
- Replaced stale CRA App.test.tsx placeholder with real tests

CI:
- .gitea/workflows/ci.yml runs go vet, go test, tsc, and npm test on
  every push and pull request

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/src/api.ts

@@ -25,14 +25,18 @@ export const api = {
   // Auth
   login: (email: string, password: string) =>
     request<{ token: string }>('POST', '/auth/login', { email, password }),
-  register: (name: string, email: string, password: string, role = 'volunteer') =>
-    request<Volunteer>('POST', '/auth/register', { name, email, password, role }),
+  activate: (token: string, password: string) =>
+    request<Volunteer>('POST', '/auth/activate', { token, password }),
 
   // Volunteers
-  listVolunteers: () => request<Volunteer[]>('GET', '/volunteers'),
-  getVolunteer: (id: number) => request<Volunteer>('GET', `/volunteers/${id}`),
-  updateVolunteer: (id: number, data: Partial<Volunteer>) =>
+  createVolunteer: (data: CreateVolunteerInput) =>
+    request<AdminVolunteer>('POST', '/volunteers', data),
+  listVolunteers: () => request<Volunteer[] | AdminVolunteer[]>('GET', '/volunteers'),
+  getVolunteer: (id: number) => request<Volunteer | AdminVolunteer>('GET', `/volunteers/${id}`),
+  updateVolunteer: (id: number, data: Partial<UpdateVolunteerInput>) =>
     request<Volunteer>('PUT', `/volunteers/${id}`, data),
+  resendInvite: (id: number) =>
+    request<{ invite_token: string }>('POST', `/volunteers/${id}/invite`, {}),
 
   // Schedules
   listSchedules: () => request<Schedule[]>('GET', '/schedules'),
@@ -64,10 +68,42 @@ export interface Volunteer {
   email: string;
   role: 'admin' | 'volunteer';
   active: boolean;
+  is_trainee: boolean;
+  phone?: string;
+  operational_roles: string;
+  notification_preference: string;
+  last_login?: string;
+  completed_shifts: number;
   created_at: string;
   updated_at: string;
 }
 
+export interface AdminVolunteer extends Volunteer {
+  admin_notes?: string;
+  invite_token?: string;
+}
+
+export interface CreateVolunteerInput {
+  name: string;
+  email: string;
+  role?: 'admin' | 'volunteer';
+  is_trainee?: boolean;
+  phone?: string;
+  operational_roles?: string;
+}
+
+export interface UpdateVolunteerInput {
+  name?: string;
+  email?: string;
+  phone?: string;
+  role?: 'admin' | 'volunteer';
+  active?: boolean;
+  is_trainee?: boolean;
+  operational_roles?: string;
+  notification_preference?: string;
+  admin_notes?: string;
+}
+
 export interface Schedule {
   id: number;
   volunteer_id: number;
@@ -122,3 +158,11 @@ export interface Notification {
   read: boolean;
   created_at: string;
 }
+
+export const OPERATIONAL_ROLES = [
+  'Behaviour Team',
+  'Dog Log Monitor',
+  'Dog Shelter Volunteer',
+  'Trainee',
+  'Floater',
+] as const;