feat: initial microservices project structure

Services:
- api: FastAPI gateway with JWT auth, async endpoints, WebSocket
- worker-gpu: CUDA sentence-transformers, FAISS IVFFlat, Ollama LLM
- worker-indexer: Winnowing+MinHash plagiarism detection, PDF/DOCX extraction
- worker-notifier: SMTP email notifications
- worker-gost: GOST 7.1-2003 and GOST R 7.0.5-2008 formatting

Infrastructure:
- docker-compose.yml (production) + docker-compose.dev.yml (hot reload)
- Nginx reverse proxy + WebSocket support
- PostgreSQL 16 with Alembic migrations
- Elasticsearch 8 with Russian/English analyzers
- MinIO, RabbitMQ, Redis, Ollama

Frontend:
- React 18 + Vite + TypeScript + TailwindCSS + Zustand + React Query v5
- 9 pages: Home, Search, Cabinet, Task, Check, Bibliography, Pricing, Login, Register

Scripts:
- Parser stubs: OpenAlex, КиберЛенинка, arXiv (Phase 0 - to be filled)

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

services/frontend/src/pages/Login.tsx

@@ -0,0 +1,90 @@
+import React, { useState } from 'react';
+import { Link, useNavigate } from 'react-router-dom';
+import { useMutation } from '@tanstack/react-query';
+import { GraduationCap } from 'lucide-react';
+import toast from 'react-hot-toast';
+import { authApi } from '../api/client';
+import { useAuthStore } from '../store/auth';
+import type { TokenResponse } from '../types';
+
+export function Login() {
+  const navigate = useNavigate();
+  const { setAuth } = useAuthStore();
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+
+  const login = useMutation({
+    mutationFn: () => authApi.login({ email, password }),
+    onSuccess: (response) => {
+      const data: TokenResponse = response.data;
+      setAuth(data.user, data.access_token);
+      toast.success(`Добро пожаловать, ${data.user.name}!`);
+      navigate('/cabinet');
+    },
+    onError: (error: any) => {
+      const msg = error.response?.data?.detail || 'Ошибка входа';
+      toast.error(msg);
+    },
+  });
+
+  const handleSubmit = (e: React.FormEvent) => {
+    e.preventDefault();
+    login.mutate();
+  };
+
+  return (
+    <div className="max-w-md mx-auto pt-8">
+      <div className="bg-white rounded-2xl border border-gray-100 p-8">
+        <div className="flex justify-center mb-6">
+          <div className="p-3 bg-brand-600 rounded-xl">
+            <GraduationCap className="w-7 h-7 text-white" />
+          </div>
+        </div>
+        <h1 className="text-2xl font-bold text-gray-900 text-center mb-1">Вход</h1>
+        <p className="text-gray-400 text-center text-sm mb-6">Войдите в свой аккаунт</p>
+
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="text-sm font-medium text-gray-700 block mb-1">Email</label>
+            <input
+              type="email"
+              value={email}
+              onChange={(e) => setEmail(e.target.value)}
+              required
+              placeholder="ivan@example.com"
+              className="w-full border border-gray-200 rounded-xl px-4 py-2.5 text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
+            />
+          </div>
+
+          <div>
+            <label className="text-sm font-medium text-gray-700 block mb-1">Пароль</label>
+            <input
+              type="password"
+              value={password}
+              onChange={(e) => setPassword(e.target.value)}
+              required
+              minLength={8}
+              placeholder="••••••••"
+              className="w-full border border-gray-200 rounded-xl px-4 py-2.5 text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
+            />
+          </div>
+
+          <button
+            type="submit"
+            disabled={login.isPending}
+            className="w-full py-2.5 bg-brand-600 text-white rounded-xl text-sm font-medium hover:bg-brand-700 disabled:opacity-50 transition-colors"
+          >
+            {login.isPending ? 'Входим...' : 'Войти'}
+          </button>
+        </form>
+
+        <p className="text-center text-sm text-gray-400 mt-6">
+          Нет аккаунта?{' '}
+          <Link to="/register" className="text-brand-600 hover:underline font-medium">
+            Зарегистрироваться
+          </Link>
+        </p>
+      </div>
+    </div>
+  );
+}