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/components/Layout.tsx

@@ -0,0 +1,149 @@
+import React from 'react';
+import { Link, NavLink, useNavigate } from 'react-router-dom';
+import { GraduationCap, Search, BookOpen, Upload, LayoutDashboard, LogOut, User, BookMarked } from 'lucide-react';
+import { clsx } from 'clsx';
+import { useAuthStore } from '../store/auth';
+
+interface LayoutProps {
+  children: React.ReactNode;
+}
+
+export function Layout({ children }: LayoutProps) {
+  const { isAuthenticated, user, logout } = useAuthStore();
+  const navigate = useNavigate();
+
+  const handleLogout = () => {
+    logout();
+    navigate('/');
+  };
+
+  return (
+    <div className="min-h-screen bg-gray-50">
+      {/* Навигация */}
+      <nav className="bg-white border-b border-gray-100 sticky top-0 z-50">
+        <div className="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
+          <div className="flex items-center justify-between h-16">
+            {/* Логотип */}
+            <Link
+              to="/"
+              className="flex items-center gap-2.5 text-gray-900 hover:text-brand-600 transition-colors"
+            >
+              <div className="p-1.5 bg-brand-600 rounded-lg">
+                <GraduationCap className="w-5 h-5 text-white" />
+              </div>
+              <span className="font-semibold text-base hidden sm:block">Академический помощник</span>
+              <span className="font-semibold text-base sm:hidden">АкадПомощник</span>
+            </Link>
+
+            {/* Центральная навигация */}
+            <div className="flex items-center gap-1">
+              <NavLink
+                to="/search"
+                className={({ isActive }) =>
+                  clsx(
+                    'flex items-center gap-1.5 px-3 py-2 rounded-lg text-sm font-medium transition-colors',
+                    isActive
+                      ? 'bg-brand-50 text-brand-700'
+                      : 'text-gray-600 hover:bg-gray-100'
+                  )
+                }
+              >
+                <Search className="w-4 h-4" />
+                <span className="hidden md:block">Поиск</span>
+              </NavLink>
+
+              <NavLink
+                to="/check"
+                className={({ isActive }) =>
+                  clsx(
+                    'flex items-center gap-1.5 px-3 py-2 rounded-lg text-sm font-medium transition-colors',
+                    isActive
+                      ? 'bg-brand-50 text-brand-700'
+                      : 'text-gray-600 hover:bg-gray-100'
+                  )
+                }
+              >
+                <Upload className="w-4 h-4" />
+                <span className="hidden md:block">Плагиат</span>
+              </NavLink>
+
+              <NavLink
+                to="/bibliography"
+                className={({ isActive }) =>
+                  clsx(
+                    'flex items-center gap-1.5 px-3 py-2 rounded-lg text-sm font-medium transition-colors',
+                    isActive
+                      ? 'bg-brand-50 text-brand-700'
+                      : 'text-gray-600 hover:bg-gray-100'
+                  )
+                }
+              >
+                <BookOpen className="w-4 h-4" />
+                <span className="hidden md:block">Библиография</span>
+              </NavLink>
+            </div>
+
+            {/* Авторизация */}
+            <div className="flex items-center gap-2">
+              {isAuthenticated ? (
+                <>
+                  <NavLink
+                    to="/cabinet"
+                    className={({ isActive }) =>
+                      clsx(
+                        'flex items-center gap-1.5 px-3 py-2 rounded-lg text-sm font-medium transition-colors',
+                        isActive
+                          ? 'bg-brand-50 text-brand-700'
+                          : 'text-gray-600 hover:bg-gray-100'
+                      )
+                    }
+                  >
+                    <LayoutDashboard className="w-4 h-4" />
+                    <span className="hidden md:block">Кабинет</span>
+                  </NavLink>
+                  <div className="flex items-center gap-2 pl-2 border-l border-gray-100">
+                    <div className="flex items-center gap-1.5">
+                      <div className="w-8 h-8 bg-brand-100 rounded-full flex items-center justify-center">
+                        <span className="text-xs font-semibold text-brand-700">
+                          {user?.name?.[0]?.toUpperCase() || 'U'}
+                        </span>
+                      </div>
+                      <span className="text-sm text-gray-600 hidden lg:block">{user?.name}</span>
+                    </div>
+                    <button
+                      onClick={handleLogout}
+                      className="p-1.5 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-lg transition-colors"
+                      title="Выйти"
+                    >
+                      <LogOut className="w-4 h-4" />
+                    </button>
+                  </div>
+                </>
+              ) : (
+                <>
+                  <Link
+                    to="/login"
+                    className="px-4 py-2 text-sm font-medium text-gray-600 hover:text-gray-900 transition-colors"
+                  >
+                    Войти
+                  </Link>
+                  <Link
+                    to="/register"
+                    className="px-4 py-2 text-sm font-medium bg-brand-600 text-white rounded-lg hover:bg-brand-700 transition-colors"
+                  >
+                    Регистрация
+                  </Link>
+                </>
+              )}
+            </div>
+          </div>
+        </div>
+      </nav>
+
+      {/* Основной контент */}
+      <main className="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+        {children}
+      </main>
+    </div>
+  );
+}