RAG 아키텍처 v2: 3단계 라우팅, 멀티-컬렉션 RAG, 선택적 메모리

Phase 1-3 구현:
- init.sql v2: 12테이블 (기존 5 + 신규 7) + 분류기 v2 프롬프트
- migrate-v2.sql: 기존 DB 마이그레이션 스크립트
- setup-qdrant.sh: tk_company 컬렉션 + payload 인덱스 설정
- 워크플로우 v2 (37노드): 토큰검증, Rate Limit, 프리필터,
  분류기v2(response_tier), 3-tier 라우팅(local/Haiku/Opus),
  멀티-컬렉션 RAG, 예산 체크, 선택적 메모리
- .env.example + docker-compose.yml: 새 환경변수 추가
- CLAUDE.md, QUICK_REFERENCE.md, docs/architecture.md 전면 갱신

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

docker-compose.yml

@@ -0,0 +1,64 @@
+services:
+  bot-n8n:
+    image: n8nio/n8n:latest
+    container_name: bot-n8n
+    restart: unless-stopped
+    ports:
+      - "5678:5678"
+    environment:
+      - N8N_BASIC_AUTH_ACTIVE=true
+      - N8N_BASIC_AUTH_USER=${N8N_BASIC_AUTH_USER}
+      - N8N_BASIC_AUTH_PASSWORD=${N8N_BASIC_AUTH_PASSWORD}
+      - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
+      - DB_TYPE=postgresdb
+      - DB_POSTGRESDB_HOST=bot-postgres
+      - DB_POSTGRESDB_PORT=5432
+      - DB_POSTGRESDB_DATABASE=${POSTGRES_DB}
+      - DB_POSTGRESDB_USER=${POSTGRES_USER}
+      - DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD}
+      - N8N_BLOCK_ENV_ACCESS_IN_NODE=false
+      - N8N_HOST=0.0.0.0
+      - WEBHOOK_URL=http://localhost:5678/
+      - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY}
+      - SYNOLOGY_CHAT_WEBHOOK_URL=${SYNOLOGY_CHAT_WEBHOOK_URL}
+      - SYNOLOGY_CHAT_TOKEN=${SYNOLOGY_CHAT_TOKEN}
+      - ADMIN_USERNAMES=${ADMIN_USERNAMES}
+      - API_BUDGET_HEAVY=${API_BUDGET_HEAVY}
+      - API_BUDGET_LIGHT=${API_BUDGET_LIGHT}
+      - LOCAL_OLLAMA_URL=${LOCAL_OLLAMA_URL}
+      - GPU_OLLAMA_URL=${GPU_OLLAMA_URL}
+      - QDRANT_URL=${QDRANT_URL:-http://host.docker.internal:6333}
+    volumes:
+      - ./n8n/data:/home/node/.n8n
+    networks:
+      - bot-network
+    depends_on:
+      bot-postgres:
+        condition: service_healthy
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+
+  bot-postgres:
+    image: postgres:16-alpine
+    container_name: bot-postgres
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:15478:5432"
+    environment:
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+      - POSTGRES_DB=${POSTGRES_DB}
+    volumes:
+      - ./postgres/data:/var/lib/postgresql/data
+      - ./init:/docker-entrypoint-initdb.d
+    networks:
+      - bot-network
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+networks:
+  bot-network:
+    driver: bridge