Default exercises are created in selected language. Initial GUI added

server/default_exercises.csv

@@ -1,43 +1,43 @@
-name,type,bodyWeightPercentage,isUnilateral
+name,name_ru,type,bodyWeightPercentage,isUnilateral
-Air Squats,BODYWEIGHT,1.0,false
+Air Squats,Приседания,BODYWEIGHT,1.0,false
-Barbell Row,STRENGTH,0,false
+Barbell Row,Тяга штанги в наклоне,STRENGTH,0,false
-Bench Press,STRENGTH,0,false
+Bench Press,Жим лежа,STRENGTH,0,false
-Bicep Curl,STRENGTH,0,true
+Bicep Curl,Подъем на бицепс,STRENGTH,0,true
-Bulgarian Split-Squat Jumps,BODYWEIGHT,1.0,true
+Bulgarian Split-Squat Jumps,Болгарские сплит-прыжки,BODYWEIGHT,1.0,true
-Bulgarian Split-Squats,BODYWEIGHT,1.0,true
+Bulgarian Split-Squats,Болгарские сплит-приседания,BODYWEIGHT,1.0,true
-Burpees,BODYWEIGHT,1.0,false
+Burpees,Берпи,BODYWEIGHT,1.0,false
-Calf Raise,STRENGTH,0,true
+Calf Raise,Подъем на носки,STRENGTH,0,true
-Chin-Ups,BODYWEIGHT,1.0,false
+Chin-Ups,Подтягивания обратным хватом,BODYWEIGHT,1.0,false
-Cycling,CARDIO,0,false
+Cycling,Велосипед,CARDIO,0,false
-Deadlift,STRENGTH,0,false
+Deadlift,Становая тяга,STRENGTH,0,false
-Dips,BODYWEIGHT,1.0,false
+Dips,Отжимания на брусьях,BODYWEIGHT,1.0,false
-Dumbbell Curl,STRENGTH,0,true
+Dumbbell Curl,Сгибания рук с гантелями,STRENGTH,0,true
-Dumbbell Shoulder Press,STRENGTH,0,true
+Dumbbell Shoulder Press,Жим гантелей сидя,STRENGTH,0,true
-Face Pull,STRENGTH,0,false
+Face Pull,Тяга к лицу,STRENGTH,0,false
-Front Squat,STRENGTH,0,false
+Front Squat,Фронтальный присед,STRENGTH,0,false
-Hammer Curl,STRENGTH,0,true
+Hammer Curl,Сгибания "Молот",STRENGTH,0,true
-Handstand,BODYWEIGHT,1.0,false
+Handstand,Стойка на руках,BODYWEIGHT,1.0,false
-Hip Thrust,STRENGTH,0,false
+Hip Thrust,Ягодичный мостик,STRENGTH,0,false
-Jump Rope,CARDIO,0,false
+Jump Rope,Скакалка,CARDIO,0,false
-Lat Pulldown,STRENGTH,0,false
+Lat Pulldown,Тяга верхнего блока,STRENGTH,0,false
-Leg Extension,STRENGTH,0,true
+Leg Extension,Разгибание ног в тренажере,STRENGTH,0,true
-Leg Press,STRENGTH,0,false
+Leg Press,Жим ногами,STRENGTH,0,false
-Lunges,BODYWEIGHT,1.0,true
+Lunges,Выпады,BODYWEIGHT,1.0,true
-Mountain Climbers,CARDIO,0,false
+Mountain Climbers,Альпинист,CARDIO,0,false
-Muscle-Up,BODYWEIGHT,1.0,false
+Muscle-Up,Выход силой,BODYWEIGHT,1.0,false
-Overhead Press,STRENGTH,0,false
+Overhead Press,Армейский жим,STRENGTH,0,false
-Plank,STATIC,0,false
+Plank,Планка,STATIC,0,false
-Pull-Ups,BODYWEIGHT,1.0,false
+Pull-Ups,Подтягивания,BODYWEIGHT,1.0,false
-Push-Ups,BODYWEIGHT,0.65,false
+Push-Ups,Отжимания,BODYWEIGHT,0.65,false
-Romanian Deadlift,STRENGTH,0,false
+Romanian Deadlift,Румынская тяга,STRENGTH,0,false
-Rowing,CARDIO,0,false
+Rowing,Гребля,CARDIO,0,false
-Running,CARDIO,0,false
+Running,Бег,CARDIO,0,false
-Russian Twist,BODYWEIGHT,0,false
+Russian Twist,Русский твист,BODYWEIGHT,0,false
-Seated Cable Row,STRENGTH,0,false
+Seated Cable Row,Тяга блока к поясу,STRENGTH,0,false
-Side Plank,STATIC,0,true
+Side Plank,Боковая планка,STATIC,0,true
-Sissy Squats,BODYWEIGHT,1.0,false
+Sissy Squats,Сисси-приседания,BODYWEIGHT,1.0,false
-Sprint,CARDIO,0,false
+Sprint,Спринт,CARDIO,0,false
-Squat,STRENGTH,0,false
+Squat,Приседания со штангой,STRENGTH,0,false
-Treadmill,CARDIO,0,false
+Treadmill,Беговая дорожка,CARDIO,0,false
-Tricep Extension,STRENGTH,0,false
+Tricep Extension,Разгибание рук на трицепс,STRENGTH,0,false
-Wall-Sit,STATIC,0,false
+Wall-Sit,Стульчик у стены,STATIC,0,false

server/src/controllers/auth.controller.ts

@@ -83,6 +83,21 @@ export class AuthController {
         }
     }
 
+    static async initializeAccount(req: any, res: Response) {
+        try {
+            const userId = req.user.userId;
+            const { language } = req.body;
+            if (!language) {
+                return sendError(res, 'Language is required', 400);
+            }
+            const user = await AuthService.initializeUser(userId, language);
+            return sendSuccess(res, { user });
+        } catch (error: any) {
+            logger.error('Error in initializeAccount', { error });
+            return sendError(res, error.message || 'Server error', 500);
+        }
+    }
+
     static async getAllUsers(req: any, res: Response) {
         try {
             if (req.user.role !== 'ADMIN') {

server/src/index.ts

@@ -65,7 +65,7 @@ async function ensureAdminUser() {
             console.info(`ℹ️  Admin user exists but with different email: ${existingAdmin.email}. Expected: ${adminEmail}`);
         }
         // Even if admin exists, ensure exercises are seeded (will skip if already has them)
-        await AuthService.seedDefaultExercises(existingAdmin.id);
+        await AuthService.seedDefaultExercises(existingAdmin.id, 'en');
         await prisma.$disconnect();
         return;
     }
@@ -77,12 +77,12 @@ async function ensureAdminUser() {
             email: adminEmail,
             password: hashed,
             role: 'ADMIN',
-            profile: { create: { weight: 70 } },
+            profile: { create: { weight: 70, language: 'en' } },
         },
     });
 
     // Seed exercises for new admin
-    await AuthService.seedDefaultExercises(admin.id);
+    await AuthService.seedDefaultExercises(admin.id, 'en');
 
     console.info(`✅  Admin user created and exercises seeded (email: ${adminEmail})`);
     await prisma.$disconnect();

server/src/routes/auth.ts

@@ -16,6 +16,7 @@ router.use(authenticateToken); // Standard middleware now
 router.get('/me', AuthController.getCurrentUser);
 router.post('/change-password', validate(changePasswordSchema), AuthController.changePassword);
 router.patch('/profile', validate(updateProfileSchema), AuthController.updateProfile);
+router.post('/initialize', AuthController.initializeAccount);
 
 // Admin routes
 router.get('/users', AuthController.getAllUsers);

server/src/services/auth.service.ts

@@ -67,17 +67,13 @@ export class AuthService {
             include: { profile: true }
         });
 
-        // Seed default exercises
-        // Seed default exercises
-        await this.seedDefaultExercises(user.id);
-
         const token = jwt.sign({ userId: user.id, role: user.role }, JWT_SECRET);
         const { password: _, ...userSafe } = user;
 
         return { user: userSafe, token };
     }
 
-    static async seedDefaultExercises(userId: string) {
+    static async seedDefaultExercises(userId: string, language: string = 'en') {
         try {
             // Ensure env is loaded from root (in case server didn't restart)
             if (!process.env.DEFAULT_EXERCISES_CSV_PATH) {
@@ -110,6 +106,8 @@ export class AuthService {
                         const headers = lines[0].split(',').map(h => h.trim());
                         const exercisesToCreate = [];
 
+                        const nameColumn = language === 'ru' ? 'name_ru' : 'name';
+
                         for (let i = 1; i < lines.length; i++) {
                             const cols = lines[i].split(',').map(c => c.trim());
                             if (cols.length < headers.length) continue;
@@ -117,10 +115,12 @@ export class AuthService {
                             const row: any = {};
                             headers.forEach((h, idx) => row[h] = cols[idx]);
 
-                            if (row.name && row.type) {
+                            const exerciseName = row[nameColumn] || row['name'];
+
+                            if (exerciseName && row.type) {
                                 exercisesToCreate.push({
                                     userId,
-                                    name: row.name,
+                                    name: exerciseName,
                                     type: row.type,
                                     bodyWeightPercentage: row.bodyWeightPercentage ? parseFloat(row.bodyWeightPercentage) : 0,
                                     isUnilateral: row.isUnilateral === 'true',
@@ -153,14 +153,34 @@ export class AuthService {
         }
     }
 
+    static async initializeUser(userId: string, language: string) {
+        // Update profile language
+        await prisma.userProfile.upsert({
+            where: { userId },
+            update: { language },
+            create: { userId, language, weight: 70 }
+        });
+
+        // Seed exercises in that language
+        await this.seedDefaultExercises(userId, language);
+
+        // Mark as first login done
+        await prisma.user.update({
+            where: { id: userId },
+            data: { isFirstLogin: false }
+        });
+
+        // Return updated user
+        return this.getUser(userId);
+    }
+
     static async changePassword(userId: string, newPassword: string) {
         const hashed = await bcrypt.hash(newPassword, 10);
 
         await prisma.user.update({
             where: { id: userId },
             data: {
-                password: hashed,
+                password: hashed
-                isFirstLogin: false
             }
         });
     }

src/App.tsx

@@ -8,6 +8,7 @@ import AICoach from './components/AICoach';
 import Plans from './components/Plans';
 import Login from './components/Login';
 import Profile from './components/Profile';
+import InitializeAccount from './components/InitializeAccount';
 import { Language, User } from './types';
 import { getSystemLanguage } from './services/i18n';
 import { useAuth } from './context/AuthContext';
@@ -49,6 +50,10 @@ function App() {
     return <Navigate to="/login" />;
   }
 
+  if (currentUser?.isFirstLogin && location.pathname !== '/initialize') {
+    return <Navigate to="/initialize" />;
+  }
+
   return (
     <div className="h-[100dvh] w-screen bg-surface text-on-surface font-sans flex flex-col md:flex-row overflow-hidden">
       {currentUser && (
@@ -66,6 +71,17 @@ function App() {
                 <Navigate to="/" />
               )
             } />
+            <Route path="/initialize" element={
+              currentUser && currentUser.isFirstLogin ? (
+                <InitializeAccount
+                  onInitialized={updateUser}
+                  language={language}
+                  onLanguageChange={setLanguage}
+                />
+              ) : (
+                <Navigate to="/" />
+              )
+            } />
             <Route path="/" element={
               <Tracker lang={language} />
             } />

src/components/InitializeAccount.tsx

@@ -0,0 +1,99 @@
+import React, { useState } from 'react';
+import { initializeAccount } from '../services/auth';
+import { User, Language } from '../types';
+import { Globe, ArrowRight, Check } from 'lucide-react';
+import { t } from '../services/i18n';
+
+interface InitializeAccountProps {
+    onInitialized: (user: User) => void;
+    language: Language;
+    onLanguageChange: (lang: Language) => void;
+}
+
+const InitializeAccount: React.FC<InitializeAccountProps> = ({ onInitialized, language, onLanguageChange }) => {
+    const [isSubmitting, setIsSubmitting] = useState(false);
+    const [error, setError] = useState('');
+
+    const handleInitialize = async () => {
+        setIsSubmitting(true);
+        setError('');
+        const res = await initializeAccount(language);
+        if (res.success && res.user) {
+            onInitialized(res.user);
+        } else {
+            setError(res.error || 'Failed to initialize account');
+            setIsSubmitting(false);
+        }
+    };
+
+    const languages: { code: Language; label: string; desc: string }[] = [
+        { code: 'en', label: 'English', desc: t('init_lang_en_desc', language) },
+        { code: 'ru', label: 'Русский', desc: t('init_lang_ru_desc', language) },
+    ];
+
+    return (
+        <div className="h-screen bg-surface flex flex-col items-center justify-center p-6 bg-surface">
+            <div className="w-full max-w-sm bg-surface-container p-8 rounded-[28px] shadow-elevation-2 flex flex-col items-center">
+                <div className="w-16 h-16 bg-primary-container rounded-2xl flex items-center justify-center text-on-primary-container mb-6 shadow-elevation-1">
+                    <Globe size={32} />
+                </div>
+
+                <h1 className="text-2xl font-normal text-on-surface mb-2 text-center">
+                    {t('init_title', language)}
+                </h1>
+                <p className="text-sm text-on-surface-variant mb-8 text-center balance">
+                    {t('init_desc', language)}
+                </p>
+
+                {error && (
+                    <div className="w-full text-error text-sm text-center bg-error-container/10 p-3 rounded-xl mb-6 border border-error/10">
+                        {error}
+                    </div>
+                )}
+
+                <div className="w-full space-y-3 mb-8">
+                    {languages.map((lang) => (
+                        <button
+                            key={lang.code}
+                            onClick={() => onLanguageChange(lang.code)}
+                            className={`w-full p-4 rounded-2xl border-2 transition-all flex items-center justify-between group ${language === lang.code
+                                ? 'border-primary bg-primary/5'
+                                : 'border-outline-variant/30 hover:border-outline-variant hover:bg-surface-container-high'
+                                }`}
+                        >
+                            <div className="text-left">
+                                <div className={`font-medium ${language === lang.code ? 'text-primary' : 'text-on-surface'}`}>
+                                    {lang.label}
+                                </div>
+                                <div className="text-xs text-on-surface-variant">
+                                    {lang.desc}
+                                </div>
+                            </div>
+                            {language === lang.code && (
+                                <div className="w-6 h-6 bg-primary text-on-primary rounded-full flex items-center justify-center">
+                                    <Check size={14} strokeWidth={3} />
+                                </div>
+                            )}
+                        </button>
+                    ))}
+                </div>
+
+                <button
+                    onClick={handleInitialize}
+                    disabled={isSubmitting}
+                    className="w-full py-4 bg-primary text-on-primary rounded-full font-medium text-lg shadow-elevation-1 flex items-center justify-center gap-2 hover:shadow-elevation-2 transition-all disabled:opacity-50 disabled:cursor-not-allowed"
+                >
+                    {isSubmitting ? (
+                        <div className="w-6 h-6 border-2 border-on-primary/30 border-t-on-primary rounded-full animate-spin" />
+                    ) : (
+                        <>
+                            {t('init_start', language)} <ArrowRight size={20} />
+                        </>
+                    )}
+                </button>
+            </div>
+        </div>
+    );
+};
+
+export default InitializeAccount;

src/components/Login.tsx

@@ -41,7 +41,7 @@ const Login: React.FC<LoginProps> = ({ onLogin, language, onLanguageChange }) =>
     if (tempUser && newPassword.length >= 4) {
       const res = await changePassword(tempUser.id, newPassword);
       if (res.success) {
-        const updatedUser = { ...tempUser, isFirstLogin: false };
+        const updatedUser = { ...tempUser };
         onLogin(updatedUser);
       } else {
         setError(res.error || t('change_pass_error', language));

src/services/auth.ts

@@ -149,3 +149,19 @@ export const getMe = async (): Promise<{ success: boolean; user?: User; error?:
     return { success: false, error: 'Failed to fetch user' };
   }
 };
+export const initializeAccount = async (language: string): Promise<{ success: boolean; user?: User; error?: string }> => {
+  try {
+    const res = await api.post<ApiResponse<{ user: User }>>('/auth/initialize', { language });
+    if (res.success && res.data) {
+      return { success: true, user: res.data.user };
+    }
+    return { success: false, error: res.error };
+  } catch (e: any) {
+    try {
+      const err = JSON.parse(e.message);
+      return { success: false, error: err.error || 'Failed to initialize account' };
+    } catch {
+      return { success: false, error: 'Failed to initialize account' };
+    }
+  }
+};

src/services/i18n.ts

@@ -36,6 +36,12 @@ const translations = {
     register_btn: 'Register',
     have_account: 'Already have an account? Login',
     need_account: 'Need an account? Register',
+    init_title: 'Setup Your Account',
+    init_desc: 'Welcome! Choose your preferred language.',
+    init_select_lang: 'Select Language',
+    init_start: 'Get Started',
+    init_lang_en_desc: 'GUI and default exercise names will be in English',
+    init_lang_ru_desc: 'GUI and default exercise names will be in Russian',
 
     // General
     date: 'Date',
@@ -253,6 +259,12 @@ const translations = {
     register_btn: 'Зарегистрироваться',
     have_account: 'Уже есть аккаунт? Войти',
     need_account: 'Нет аккаунта? Регистрация',
+    init_title: 'Настройка аккаунта',
+    init_desc: 'Добро пожаловать! Выберите предпочтительный язык.',
+    init_select_lang: 'Выберите язык',
+    init_start: 'Начать работу',
+    init_lang_en_desc: 'Интерфейс и названия упражнений по умолчанию будут на английском',
+    init_lang_ru_desc: 'Интерфейс и названия упражнений по умолчанию будут на русском',
 
     // General
     date: 'Дата',

tests/01_core_auth.spec.ts

@@ -12,65 +12,61 @@ test.describe('I. Core & Authentication', () => {
 
     // Helper to handle first login if needed
     async function handleFirstLogin(page: any) {
-        // Wait for either Free Workout (already logged in/not first time) 
+        console.log('Starting handleFirstLogin helper...');
-        // OR Change Password heading
+        const dashboard = page.getByText(/Free Workout|Свободная тренировка/i).first();
-        // OR Error message
+        const changePass = page.getByRole('heading', { name: /Change Password|Смена пароля/i });
-        try {
+        const initAcc = page.getByRole('heading', { name: /Setup Your Account|Настройка аккаунта/i });
-            const heading = page.getByRole('heading', { name: /Change Password/i });
-            const dashboard = page.getByText('Free Workout');
-            const loginButton = page.getByRole('button', { name: 'Login' });
 
-            // Race condition: wait for one of these to appear
+        for (let i = 0; i < 30; i++) {
-            // We use a small polling or just wait logic. 
+            if (await dashboard.isVisible()) {
-            // Playwright doesn't have "race" for locators easily without Promise.race
+                console.log('Dashboard visible.');
-
-            // Simple approach: Check if Change Password appears within 5s
-            await expect(heading).toBeVisible({ timeout: 5000 });
-
-            // If we are here, Change Password is visible
-            console.log('Change Password screen detected. Handling...');
-            await page.getByLabel('New Password').fill('StrongNewPass123!');
-            await page.getByRole('button', { name: /Save|Change/i }).click();
-
-            // Now expect dashboard
-            await expect(dashboard).toBeVisible();
-            console.log('Password changed. Dashboard visible.');
-        } catch (e) {
-            // If Change Password didn't appear, maybe we are already at dashboard?
-            if (await page.getByText('Free Workout').isVisible()) {
-                console.log('Already at Dashboard.');
                 return;
             }
-            // Check for login error
+
-            const error = page.locator('.text-error');
+            if (await changePass.isVisible()) {
-            if (await error.isVisible()) {
+                console.log('Change Password screen detected. Handling...');
-                console.log('Login Error detected:', await error.textContent());
+                await page.getByLabel(/New Password|Новый пароль/i).fill('StrongNewPass123!');
-                throw new Error(`Login failed: ${await error.textContent()}`);
+                await page.getByRole('button', { name: /Save|Change|Сохранить/i }).click();
+                // Wait a bit for transition
+                await page.waitForTimeout(1000);
+                continue;
             }
-            // Note: If none of the above, it might be a clean login that just worked fast or failed silently
+
+            if (await initAcc.isVisible()) {
+                console.log('Initialization screen detected. Handling...');
+                await page.getByRole('button', { name: /Get Started|Начать работу/i }).click();
+                // Wait a bit for transition
+                await page.waitForTimeout(1000);
+                continue;
+            }
+
+            await page.waitForTimeout(500);
         }
+
+        // Final check with assertion to fail the test if not reached
+        await expect(dashboard).toBeVisible({ timeout: 5000 });
     }
 
     // 1.1. A. Login - Successful Authentication
     test('1.1 Login - Successful Authentication', async ({ page, createUniqueUser }) => {
         const user = await createUniqueUser();
 
-        await page.getByLabel('Email').fill(user.email);
+        await page.getByLabel(/Email/i).fill(user.email);
-        await page.getByLabel('Password').fill(user.password);
+        await page.getByLabel(/Password|Пароль/i).fill(user.password);
-        await page.getByRole('button', { name: 'Login' }).click();
+        await page.getByRole('button', { name: /Login|Войти/i }).click();
 
         await handleFirstLogin(page);
 
         // Expect redirection to dashboard
         await expect(page).not.toHaveURL(/\/login/);
-        await expect(page.getByText('Free Workout')).toBeVisible();
+        await expect(page.getByText(/Free Workout|Свободная тренировка/i).first()).toBeVisible();
     });
 
     // 1.2. A. Login - Invalid Credentials
     test('1.2 Login - Invalid Credentials', async ({ page }) => {
-        await page.getByLabel('Email').fill('invalid@user.com');
+        await page.getByLabel(/Email/i).fill('invalid@user.com');
-        await page.getByLabel('Password').fill('wrongpassword');
+        await page.getByLabel(/Password|Пароль/i).fill('wrongpassword');
-        await page.getByRole('button', { name: 'Login' }).click();
+        await page.getByRole('button', { name: /Login|Войти/i }).click();
 
         await expect(page.getByText('Invalid credentials')).toBeVisible();
         await expect(page.getByRole('button', { name: 'Login' })).toBeVisible();
@@ -79,31 +75,34 @@ test.describe('I. Core & Authentication', () => {
     test('1.3 & 1.4 Login - First-Time Password Change', async ({ page, createUniqueUser }) => {
         const user = await createUniqueUser();
 
-        await page.getByLabel('Email').fill(user.email);
+        await page.getByLabel(/Email/i).fill(user.email);
-        await page.getByLabel('Password').fill(user.password);
+        await page.getByLabel(/Password|Пароль/i).fill(user.password);
-        await page.getByRole('button', { name: 'Login' }).click();
+        await page.getByRole('button', { name: /Login|Войти/i }).click();
 
-        await expect(page.getByRole('heading', { name: /Change Password/i }).first()).toBeVisible({ timeout: 10000 });
+        await expect(page.getByRole('heading', { name: /Change Password|Смена пароля/i }).first()).toBeVisible({ timeout: 10000 });
 
         // 1.4 Test short password
-        await page.getByLabel('New Password').fill('123');
+        await page.getByLabel(/New Password|Новый пароль/i).fill('123');
-        await page.getByRole('button', { name: /Save|Change/i }).click();
+        await page.getByRole('button', { name: /Save|Change|Сохранить/i }).click();
-        await expect(page.getByText('Password too short')).toBeVisible();
+        await expect(page.getByText(/Password too short|Пароль слишком короткий/i)).toBeVisible();
 
         // 1.3 Test successful change
-        await page.getByLabel('New Password').fill('StrongNewPass123!');
+        await page.getByLabel(/New Password|Новый пароль/i).fill('StrongNewPass123!');
-        await page.getByRole('button', { name: /Save|Change/i }).click();
+        await page.getByRole('button', { name: /Save|Change|Сохранить/i }).click();
+
+        // Now we should be on Setup Account page
+        await expect(page.getByRole('heading', { name: /Setup Your Account|Настройка аккаунта/i })).toBeVisible();
+        await page.getByRole('button', { name: /Get Started|Начать работу/i }).click();
 
         // Now we should be logged in
-        await expect(page.getByText('Free Workout')).toBeVisible();
+        await expect(page.getByText(/Free Workout|Свободная тренировка/i).first()).toBeVisible();
     });
 
 
-    // 1.5. A. Login - Language Selection (English)
     test('1.5 Login - Language Selection (English)', async ({ page }) => {
         await page.getByRole('combobox').selectOption('en');
-        await expect(page.getByLabel('Email')).toBeVisible();
+        await expect(page.getByLabel(/Email/i)).toBeVisible();
-        await expect(page.getByRole('button', { name: 'Login' })).toBeVisible();
+        await expect(page.getByRole('button', { name: /Login|Войти/i })).toBeVisible();
     });
 
     // 1.6. A. Login - Language Selection (Russian)
@@ -116,26 +115,26 @@ test.describe('I. Core & Authentication', () => {
     test('1.7 Navigation - Desktop Navigation Rail', async ({ page, createUniqueUser }) => {
         const user = await createUniqueUser();
 
-        await page.getByLabel('Email').fill(user.email);
+        await page.getByLabel(/Email/i).fill(user.email);
-        await page.getByLabel('Password').fill(user.password);
+        await page.getByLabel(/Password|Пароль/i).fill(user.password);
-        await page.getByRole('button', { name: 'Login' }).click();
+        await page.getByRole('button', { name: /Login|Войти/i }).click();
 
         await handleFirstLogin(page);
 
         // Set viewport to desktop
         await page.setViewportSize({ width: 1280, height: 720 });
 
-        await expect(page.getByRole('button', { name: 'Tracker' }).first()).toBeVisible();
+        await expect(page.getByRole('button', { name: /Tracker|Трекер/i }).first()).toBeVisible();
-        await expect(page.getByRole('button', { name: 'Plans' }).first()).toBeVisible();
+        await expect(page.getByRole('button', { name: /Plans|Планы/i }).first()).toBeVisible();
     });
 
     // 1.8. B. Navigation - Mobile Bottom Navigation Bar
     test('1.8 Navigation - Mobile Bottom Navigation Bar', async ({ page, createUniqueUser }) => {
         const user = await createUniqueUser();
 
-        await page.getByLabel('Email').fill(user.email);
+        await page.getByLabel(/Email/i).fill(user.email);
-        await page.getByLabel('Password').fill(user.password);
+        await page.getByLabel(/Password|Пароль/i).fill(user.password);
-        await page.getByRole('button', { name: 'Login' }).click();
+        await page.getByRole('button', { name: /Login|Войти/i }).click();
 
         await handleFirstLogin(page);
 
@@ -145,7 +144,44 @@ test.describe('I. Core & Authentication', () => {
         await page.waitForTimeout(500); // Allow layout transition
 
         // Verify visibility of mobile nav items
-        await expect(page.getByRole('button', { name: 'Tracker' }).last()).toBeVisible();
+        await expect(page.getByRole('button', { name: /Tracker|Трекер/i }).last()).toBeVisible();
+    });
+
+    // 1.9. C. Initialization - Russian Language Seeding
+    test('1.9 Initialization - Russian Language Seeding', async ({ page, createUniqueUser }) => {
+        const user = await createUniqueUser();
+
+        await page.getByLabel(/Email/i).fill(user.email);
+        await page.getByLabel(/Password|Пароль/i).fill(user.password);
+        await page.getByRole('button', { name: /Login|Войти/i }).click();
+
+        // Handle password change
+        await expect(page.getByRole('heading', { name: /Change Password|Смена пароля/i })).toBeVisible();
+        await page.getByLabel(/New Password|Новый пароль/i).fill('StrongNewPass123!');
+        await page.getByRole('button', { name: /Save|Change|Сохранить/i }).click();
+
+        // Handle initialization - Select Russian
+        await expect(page.getByRole('heading', { name: /Setup Your Account|Настройка аккаунта/i })).toBeVisible();
+        await page.getByText('Русский').click();
+        await page.getByRole('button', { name: /Начать работу|Get Started/i }).click();
+
+        // Expect dashboard
+        await expect(page.getByText('Свободная тренировка')).toBeVisible();
+
+        // Verify some exercise is in Russian
+        await page.getByText(/Свободная тренировка|Free Workout/i).first().click();
+        await page.getByLabel(/Выберите упражнение|Select Exercise/i).click();
+
+        // "Air Squats" should be "Приседания" in suggestions
+        await expect(page.getByRole('button', { name: 'Приседания', exact: true })).toBeVisible();
+        await page.getByRole('button', { name: 'Приседания', exact: true }).click();
+
+        // Verify it's selected in the input
+        const exerciseInput = page.getByLabel(/Выберите упражнение|Select Exercise/i);
+        await expect(exerciseInput).toHaveValue('Приседания');
+
+        // Verify "Log Set" button is now in Russian
+        await expect(page.getByRole('button', { name: /Записать подход|Log Set/i })).toBeVisible();
     });
 
 });