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/elasticsearch/setup.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+# Создание ES индекса с маппингом для документов
+# Запускать после старта контейнера Elasticsearch
+
+set -e
+
+ES_URL="${ELASTICSEARCH_URL:-http://localhost:9200}"
+INDEX_NAME="documents"
+MAPPINGS_FILE="$(dirname "$0")/mappings.json"
+
+echo "Ожидание готовности Elasticsearch..."
+until curl -s "$ES_URL/_cluster/health" | grep -qv '"status":"red"'; do
+    sleep 2
+done
+echo "Elasticsearch готов."
+
+# Проверить существование индекса
+if curl -s -o /dev/null -w "%{http_code}" "$ES_URL/$INDEX_NAME" | grep -q "200"; then
+    echo "Индекс '$INDEX_NAME' уже существует."
+    read -p "Пересоздать? (y/N): " confirm
+    if [[ $confirm != "y" ]]; then
+        echo "Пропускаем."
+        exit 0
+    fi
+    echo "Удаление старого индекса..."
+    curl -s -X DELETE "$ES_URL/$INDEX_NAME"
+    echo ""
+fi
+
+echo "Создание индекса '$INDEX_NAME'..."
+curl -s -X PUT "$ES_URL/$INDEX_NAME" \
+    -H "Content-Type: application/json" \
+    -d @"$MAPPINGS_FILE" | python3 -m json.tool
+
+echo ""
+echo "Индекс '$INDEX_NAME' создан."