feat: 전문적이고 모던한 OAuth 로그인 UI 구현

- AiMond Authorization 브랜딩 적용
- 다크모드 기반 글래스모피즘 디자인
- 애니메이션 효과 (플로팅, 그라디언트, 포커스)
- React Router 기반 라우팅 구조
- AuthContext를 통한 인증 상태 관리
- 대시보드 및 관리 페이지 기본 구조
- Backend API 엔드포인트 구조 개선
- pymongo 호환성 문제 수정

🤖 Generated with [Claude Code](https://claude.ai/code)

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

oauth/backend/app/api/v1/endpoints/admin.py

@@ -0,0 +1,25 @@
+from fastapi import APIRouter, Depends, HTTPException
+from typing import List
+from app.core.security import get_current_user, require_admin
+from app.models.user import User
+
+router = APIRouter()
+
+@router.get("/users", dependencies=[Depends(require_admin)])
+async def get_all_users():
+    # TODO: Implement get all users logic
+    return {"users": []}
+
+@router.get("/stats", dependencies=[Depends(require_admin)])
+async def get_system_stats():
+    # TODO: Implement system statistics logic
+    return {
+        "total_users": 0,
+        "total_applications": 0,
+        "active_sessions": 0
+    }
+
+@router.post("/users/{user_id}/role", dependencies=[Depends(require_admin)])
+async def update_user_role(user_id: str, role: str):
+    # TODO: Implement role update logic
+    return {"message": f"User {user_id} role updated to {role}"}

oauth/backend/app/api/v1/endpoints/applications.py

@@ -0,0 +1,37 @@
+from fastapi import APIRouter, Depends, HTTPException
+from typing import List
+from app.core.security import get_current_user
+from app.models.user import User
+from app.models.application import Application
+
+router = APIRouter()
+
+@router.get("/", response_model=List[Application])
+async def get_applications(current_user: User = Depends(get_current_user)):
+    # TODO: Implement application list logic
+    return []
+
+@router.post("/", response_model=Application)
+async def create_application(
+    app_data: dict,
+    current_user: User = Depends(get_current_user)
+):
+    # TODO: Implement application creation logic
+    return {"message": "Application created"}
+
+@router.put("/{app_id}")
+async def update_application(
+    app_id: str,
+    app_data: dict,
+    current_user: User = Depends(get_current_user)
+):
+    # TODO: Implement application update logic
+    return {"message": f"Application {app_id} updated"}
+
+@router.delete("/{app_id}")
+async def delete_application(
+    app_id: str,
+    current_user: User = Depends(get_current_user)
+):
+    # TODO: Implement application deletion logic
+    return {"message": f"Application {app_id} deleted"}

oauth/backend/app/api/v1/endpoints/auth.py

@@ -0,0 +1,38 @@
+from fastapi import APIRouter, HTTPException, Depends, status
+from fastapi.security import OAuth2PasswordRequestForm
+from app.core.security import create_access_token, get_current_user
+from app.models.user import User
+from app.core.config import settings
+
+router = APIRouter()
+
+@router.post("/login")
+async def login(form_data: OAuth2PasswordRequestForm = Depends()):
+    # TODO: Implement actual authentication
+    return {
+        "access_token": create_access_token({"sub": form_data.username}),
+        "token_type": "bearer"
+    }
+
+@router.post("/logout")
+async def logout(current_user: User = Depends(get_current_user)):
+    # TODO: Implement logout logic
+    return {"message": "Logged out successfully"}
+
+@router.post("/refresh")
+async def refresh_token(current_user: User = Depends(get_current_user)):
+    # TODO: Implement token refresh logic
+    return {
+        "access_token": create_access_token({"sub": current_user.email}),
+        "token_type": "bearer"
+    }
+
+@router.get("/authorize")
+async def authorize():
+    # TODO: Implement OAuth authorization
+    return {"message": "Authorization endpoint"}
+
+@router.post("/token")
+async def token():
+    # TODO: Implement OAuth token endpoint
+    return {"message": "Token endpoint"}

oauth/backend/app/api/v1/endpoints/users.py

@@ -0,0 +1,25 @@
+from fastapi import APIRouter, Depends, HTTPException
+from app.core.security import get_current_user
+from app.models.user import User
+
+router = APIRouter()
+
+@router.get("/me")
+async def get_me(current_user: User = Depends(get_current_user)):
+    return current_user
+
+@router.put("/me")
+async def update_me(
+    user_update: dict,
+    current_user: User = Depends(get_current_user)
+):
+    # TODO: Implement user update logic
+    return {"message": "User updated", "user": current_user}
+
+@router.post("/me/password")
+async def change_password(
+    password_data: dict,
+    current_user: User = Depends(get_current_user)
+):
+    # TODO: Implement password change logic
+    return {"message": "Password changed successfully"}

oauth/backend/app/core/security.py

@@ -0,0 +1,51 @@
+from datetime import datetime, timedelta
+from typing import Optional, Dict, Any
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+def create_access_token(data: Dict[str, Any], expires_delta: Optional[timedelta] = None) -> str:
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+    return encoded_jwt
+
+async def get_current_user(token: str = Depends(oauth2_scheme)):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    try:
+        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
+        username: str = payload.get("sub")
+        if username is None:
+            raise credentials_exception
+    except JWTError:
+        raise credentials_exception
+    
+    # TODO: Get user from database
+    return {"email": username, "role": "user"}
+
+async def require_admin(current_user = Depends(get_current_user)):
+    if current_user.get("role") != "system_admin":
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="Not enough permissions"
+        )
+    return current_user