Refactor database services and add component tests

- Remove deprecated CouchDB service files
- Update database test configurations
- Add test files for components and auth modules
- Update user context and admin interface
- Remove migration script for unified config
- Fix User interface properties in tests (use status instead of isActive)

contexts/UserContext.tsx

@@ -6,7 +6,7 @@ import React, {
   ReactNode,
 } from 'react';
 import { User } from '../types';
-import { dbService } from '../services/couchdb.factory';
+import { databaseService } from '../services/database';
 import { authService } from '../services/auth/auth.service';
 
 const SESSION_KEY = 'medication_app_session';
@@ -74,7 +74,7 @@ export const UserProvider: React.FC<{ children: ReactNode }> = ({
 
       // Update last login time
       const updatedUser = { ...result.user, lastLoginAt: new Date() };
-      await dbService.updateUser(updatedUser);
+      await databaseService.updateUser(updatedUser);
 
       console.warn('Updated user with last login:', updatedUser);
 
@@ -119,7 +119,7 @@ export const UserProvider: React.FC<{ children: ReactNode }> = ({
 
       // Update last login time
       const updatedUser = { ...result.user, lastLoginAt: new Date() };
-      await dbService.updateUser(updatedUser);
+      await databaseService.updateUser(updatedUser);
 
       console.warn('Updated OAuth user with last login:', updatedUser);
 
@@ -157,7 +157,7 @@ export const UserProvider: React.FC<{ children: ReactNode }> = ({
 
   const updateUser = async (updatedUser: User) => {
     try {
-      const savedUser = await dbService.updateUser(updatedUser);
+      const savedUser = await databaseService.updateUser(updatedUser);
       setUser(savedUser);
     } catch (error) {
       console.error('Failed to update user', error);