feat: 3-System 분리 프로젝트 초기 코드 작성

TK-FB(공장관리+신고)와 M-Project(부적합관리)를 3개 독립 시스템으로
분리하기 위한 전체 코드 구조 작성.
- SSO 인증 서비스 (bcrypt + pbkdf2 이중 해시 지원)
- System 1: 공장관리 (TK-FB 기반, 신고 코드 제거)
- System 2: 신고 (TK-FB에서 workIssue 코드 추출)
- System 3: 부적합관리 (M-Project 기반)
- Gateway 포털 (path-based 라우팅)
- 통합 docker-compose.yml 및 배포 스크립트

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

.env.example

@@ -0,0 +1,90 @@
+# ===================================================================
+# TK Factory Services - 통합 환경 변수 설정
+# ===================================================================
+# 사용법: cp .env.example .env && vi .env
+# 주의: .env 파일은 절대 Git에 커밋하지 마세요!
+# ===================================================================
+
+# -------------------------------------------------------------------
+# SSO 인증 (공통)
+# -------------------------------------------------------------------
+SSO_JWT_SECRET=change_this_to_random_string_min_32_chars
+SSO_JWT_EXPIRES_IN=7d
+SSO_JWT_REFRESH_SECRET=change_this_to_another_random_string_min_32_chars
+SSO_JWT_REFRESH_EXPIRES_IN=30d
+
+# -------------------------------------------------------------------
+# MariaDB (System 1 + System 2 공유)
+# -------------------------------------------------------------------
+MYSQL_ROOT_PASSWORD=change_this_root_password_min_12_chars
+MYSQL_DATABASE=hyungi
+MYSQL_USER=hyungi_user
+MYSQL_PASSWORD=change_this_user_password_min_12_chars
+
+# -------------------------------------------------------------------
+# PostgreSQL (System 3 전용)
+# -------------------------------------------------------------------
+POSTGRES_USER=mproject
+POSTGRES_PASSWORD=change_this_postgres_password
+POSTGRES_DB=mproject
+
+# -------------------------------------------------------------------
+# System 1 - 공장관리 API
+# -------------------------------------------------------------------
+SYSTEM1_NODE_ENV=production
+SYSTEM1_API_PORT=3005
+SYSTEM1_DB_HOST=mariadb
+SYSTEM1_DB_PORT=3306
+
+# -------------------------------------------------------------------
+# System 1 - FastAPI Bridge
+# -------------------------------------------------------------------
+SYSTEM1_FASTAPI_BASE_URL=http://system1-api:3005
+
+# -------------------------------------------------------------------
+# System 2 - 신고 API
+# -------------------------------------------------------------------
+SYSTEM2_NODE_ENV=production
+SYSTEM2_API_PORT=3005
+SYSTEM2_DB_HOST=mariadb
+SYSTEM2_DB_PORT=3306
+
+# -------------------------------------------------------------------
+# System 3 - 부적합관리 API
+# -------------------------------------------------------------------
+SYSTEM3_DATABASE_URL=postgresql://mproject:change_this_postgres_password@postgres:5432/mproject
+SYSTEM3_ADMIN_USERNAME=hyungi
+SYSTEM3_ADMIN_PASSWORD=change_this_admin_password
+
+# -------------------------------------------------------------------
+# M-Project 연동 (System 2 → System 3)
+# -------------------------------------------------------------------
+M_PROJECT_API_URL=http://system3-api:8000
+M_PROJECT_USERNAME=api_service
+M_PROJECT_PASSWORD=change_this_api_service_password
+M_PROJECT_DEFAULT_PROJECT_ID=1
+
+# -------------------------------------------------------------------
+# Redis
+# -------------------------------------------------------------------
+REDIS_HOST=redis
+REDIS_PORT=6379
+
+# -------------------------------------------------------------------
+# 외부 서비스 (선택)
+# -------------------------------------------------------------------
+WEATHER_API_URL=https://apis.data.go.kr/1360000/VilageFcstInfoService_2.0
+WEATHER_API_KEY=
+
+# -------------------------------------------------------------------
+# phpMyAdmin
+# -------------------------------------------------------------------
+PMA_HOST=mariadb
+PMA_USER=root
+PMA_PASSWORD=change_this_root_password_min_12_chars
+UPLOAD_LIMIT=50M
+
+# -------------------------------------------------------------------
+# Cloudflare Tunnel (선택)
+# -------------------------------------------------------------------
+# CLOUDFLARE_TUNNEL_TOKEN=your_tunnel_token_here