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>

infra/nginx/nginx.conf

@@ -0,0 +1,113 @@
+# Nginx конфиг для academic.jze9.ru
+# Продакшн: SSL + proxy to FastAPI + React static
+
+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log warn;
+pid /var/run/nginx.pid;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    # Логи
+    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
+                    '$status $body_bytes_sent "$http_referer" '
+                    '"$http_user_agent"';
+    access_log /var/log/nginx/access.log main;
+
+    sendfile        on;
+    tcp_nopush      on;
+    keepalive_timeout 65;
+
+    # Gzip
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;
+    gzip_min_length 1024;
+    gzip_vary on;
+
+    # Лимиты
+    client_max_body_size 100M;
+    proxy_read_timeout 300s;
+    proxy_connect_timeout 30s;
+    proxy_send_timeout 300s;
+
+    # Upstream
+    upstream api {
+        server api:8000;
+        keepalive 32;
+    }
+
+    # HTTP → HTTPS редирект
+    server {
+        listen 80;
+        server_name academic.jze9.ru;
+        return 301 https://$server_name$request_uri;
+    }
+
+    # HTTPS основной сервер
+    server {
+        listen 443 ssl http2;
+        server_name academic.jze9.ru;
+
+        # SSL (Let's Encrypt)
+        ssl_certificate     /etc/letsencrypt/live/academic.jze9.ru/fullchain.pem;
+        ssl_certificate_key /etc/letsencrypt/live/academic.jze9.ru/privkey.pem;
+
+        ssl_protocols       TLSv1.2 TLSv1.3;
+        ssl_ciphers         ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
+        ssl_prefer_server_ciphers off;
+        ssl_session_cache   shared:SSL:10m;
+        ssl_session_timeout 1d;
+
+        # HSTS
+        add_header Strict-Transport-Security "max-age=63072000" always;
+
+        # Security headers
+        add_header X-Content-Type-Options nosniff;
+        add_header X-Frame-Options DENY;
+        add_header X-XSS-Protection "1; mode=block";
+
+        # ── API proxy ──────────────────────────────────────────────────────────
+        location /api/ {
+            proxy_pass http://api/api/;
+            proxy_http_version 1.1;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header Connection "";
+        }
+
+        # ── WebSocket ──────────────────────────────────────────────────────────
+        location /ws/ {
+            proxy_pass http://api/ws/;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_read_timeout 86400;
+        }
+
+        # ── React SPA (статика) ────────────────────────────────────────────────
+        root /var/www/academic;
+        index index.html;
+
+        location / {
+            try_files $uri $uri/ /index.html;
+            expires 1d;
+            add_header Cache-Control "public, no-transform";
+        }
+
+        # Кэшировать статические ресурсы
+        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2|woff)$ {
+            expires 30d;
+            add_header Cache-Control "public, immutable";
+        }
+    }
+}