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/mappings.json

@@ -0,0 +1,75 @@
+{
+  "settings": {
+    "number_of_shards": 1,
+    "number_of_replicas": 0,
+    "analysis": {
+      "analyzer": {
+        "russian_analyzer": {
+          "type": "custom",
+          "tokenizer": "standard",
+          "filter": ["lowercase", "russian_stop", "russian_stemmer"]
+        },
+        "english_analyzer": {
+          "type": "custom",
+          "tokenizer": "standard",
+          "filter": ["lowercase", "english_stop", "english_stemmer"]
+        },
+        "multilingual_analyzer": {
+          "type": "custom",
+          "tokenizer": "standard",
+          "filter": ["lowercase", "russian_stop", "russian_stemmer", "english_stop"]
+        }
+      },
+      "filter": {
+        "russian_stop": {
+          "type": "stop",
+          "stopwords": "_russian_"
+        },
+        "russian_stemmer": {
+          "type": "stemmer",
+          "language": "russian"
+        },
+        "english_stop": {
+          "type": "stop",
+          "stopwords": "_english_"
+        },
+        "english_stemmer": {
+          "type": "stemmer",
+          "language": "english"
+        }
+      }
+    }
+  },
+  "mappings": {
+    "properties": {
+      "doc_id":   {"type": "long"},
+      "source":   {"type": "keyword"},
+      "title": {
+        "type": "text",
+        "analyzer": "multilingual_analyzer",
+        "fields": {
+          "keyword": {"type": "keyword", "ignore_above": 512},
+          "ru": {"type": "text", "analyzer": "russian_analyzer"},
+          "en": {"type": "text", "analyzer": "english_analyzer"}
+        }
+      },
+      "abstract": {
+        "type": "text",
+        "analyzer": "multilingual_analyzer",
+        "fields": {
+          "ru": {"type": "text", "analyzer": "russian_analyzer"},
+          "en": {"type": "text", "analyzer": "english_analyzer"}
+        }
+      },
+      "authors":  {
+        "type": "text",
+        "analyzer": "multilingual_analyzer"
+      },
+      "year":     {"type": "integer"},
+      "lang":     {"type": "keyword"},
+      "journal":  {"type": "keyword", "ignore_above": 512},
+      "doi":      {"type": "keyword"},
+      "url":      {"type": "keyword", "index": false}
+    }
+  }
+}

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."