Initial commit: OAuth 2.0 인증 시스템 with APISIX API Gateway

- FastAPI 백엔드 + MongoDB + Redis 구성
- React + Vite + TypeScript + shadcn/ui 프론트엔드
- Apache APISIX API Gateway 통합
- Docker Compose 기반 개발 환경
- 3단계 권한 체계 (System Admin, Group Admin, User)
- 동적 테마 지원
- 환경별 설정 (dev/vei/prod)

🤖 Generated with Claude Code

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

oauth/backend/app/core/config.py

@@ -0,0 +1,49 @@
+from typing import List, Union
+from pydantic_settings import BaseSettings
+from pydantic import field_validator
+import os
+
+class Settings(BaseSettings):
+    PROJECT_NAME: str = "OAuth Authentication System"
+    VERSION: str = "1.0.0"
+    API_V1_STR: str = "/api/v1"
+    
+    SECRET_KEY: str = os.getenv("SECRET_KEY", "0198fda4-294e-77b0-a95d-2b601d2c594d")
+    ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+    REFRESH_TOKEN_EXPIRE_DAYS: int = 7
+    
+    MONGODB_URL: str = os.getenv("MONGODB_URL", "mongodb://localhost:27017")
+    DATABASE_NAME: str = os.getenv("DATABASE_NAME", "oauth_db")
+    
+    REDIS_URL: str = os.getenv("REDIS_URL", "redis://localhost:6379")
+    
+    BACKEND_CORS_ORIGINS: List[str] = ["http://localhost:3000", "http://localhost:5173"]
+    
+    ENVIRONMENT: str = os.getenv("ENVIRONMENT", "dev")
+    
+    BACKUP_PATH: str = os.getenv("BACKUP_PATH", "/var/backups/oauth")
+    ARCHIVE_PATH: str = os.getenv("ARCHIVE_PATH", "/var/archives/oauth")
+    
+    SMTP_HOST: str = os.getenv("SMTP_HOST", "")
+    SMTP_PORT: int = int(os.getenv("SMTP_PORT", "587"))
+    SMTP_USER: str = os.getenv("SMTP_USER", "")
+    SMTP_PASSWORD: str = os.getenv("SMTP_PASSWORD", "")
+    
+    NEXUS_URL: str = os.getenv("NEXUS_URL", "")
+    NEXUS_REPOSITORY: str = os.getenv("NEXUS_REPOSITORY", "")
+    
+    @field_validator("BACKEND_CORS_ORIGINS", mode="before")
+    @classmethod
+    def assemble_cors_origins(cls, v: Union[str, List[str]]) -> Union[List[str], str]:
+        if isinstance(v, str) and not v.startswith("["):
+            return [i.strip() for i in v.split(",")]
+        elif isinstance(v, (list, str)):
+            return v
+        raise ValueError(v)
+    
+    class Config:
+        env_file = ".env"
+        case_sensitive = True
+
+settings = Settings()

oauth/backend/app/core/database.py

@@ -0,0 +1,38 @@
+from motor.motor_asyncio import AsyncIOMotorClient
+from app.core.config import settings
+import redis.asyncio as redis
+from typing import Optional
+
+class Database:
+    client: Optional[AsyncIOMotorClient] = None
+    database = None
+    redis_client: Optional[redis.Redis] = None
+
+db = Database()
+
+async def init_db():
+    db.client = AsyncIOMotorClient(settings.MONGODB_URL)
+    db.database = db.client[settings.DATABASE_NAME]
+    db.redis_client = await redis.from_url(settings.REDIS_URL, decode_responses=True)
+    
+    await create_indexes()
+
+async def close_db():
+    if db.client:
+        db.client.close()
+    if db.redis_client:
+        await db.redis_client.close()
+
+async def create_indexes():
+    await db.database.users.create_index("email", unique=True)
+    await db.database.users.create_index("username", unique=True)
+    await db.database.applications.create_index("client_id", unique=True)
+    await db.database.applications.create_index("app_name", unique=True)
+    await db.database.auth_history.create_index([("user_id", 1), ("created_at", -1)])
+    await db.database.auth_history.create_index("created_at")
+
+def get_database():
+    return db.database
+
+def get_redis():
+    return db.redis_client