diff --git a/backend/app/__init__.py b/backend/app/__init__.py
deleted file mode 100644
index 8b13789..0000000
--- a/backend/app/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/backend/app/config.py b/backend/app/config.py
index ba16b7a..e44a716 100644
--- a/backend/app/config.py
+++ b/backend/app/config.py
@@ -6,4 +6,7 @@ load_dotenv()
 DATABASE_URL = os.getenv(
     "DATABASE_URL",
     "postgresql+asyncpg://postgres:password@localhost:5432/hadoop_fault_db",
-)
\ No newline at end of file
+)
+
+JWT_SECRET = os.getenv("JWT_SECRET", "dev-secret")
+JWT_EXPIRE_MINUTES = int(os.getenv("JWT_EXPIRE_MINUTES", "60"))
diff --git a/backend/app/db.py b/backend/app/db.py
index 7b09034..5c1fcd9 100644
--- a/backend/app/db.py
+++ b/backend/app/db.py
@@ -1,5 +1,5 @@
 from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
-from app.config import DATABASE_URL
+from .config import DATABASE_URL
 
 engine = create_async_engine(DATABASE_URL, echo=False, pool_pre_ping=True)
 SessionLocal = async_sessionmaker(engine, expire_on_commit=False, class_=AsyncSession)
@@ -7,4 +7,4 @@ SessionLocal = async_sessionmaker(engine, expire_on_commit=False, class_=AsyncSe
 async def get_db() -> AsyncSession:
     """获取一个异步数据库会话，用于依赖注入。"""
     async with SessionLocal() as session:
-        yield session
\ No newline at end of file
+        yield session
diff --git a/backend/app/main.py b/backend/app/main.py
index 1e60dd6..9630e79 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -1,6 +1,6 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from app.routers import health, clusters, faults, logs
+from .routers import auth, health
 
 app = FastAPI(title="Hadoop Fault Detecting API", version="v1")
 
@@ -13,6 +13,4 @@ app.add_middleware(
 )
 
 app.include_router(health.router, prefix="/api/v1")
-app.include_router(clusters.router, prefix="/api/v1")
-app.include_router(faults.router, prefix="/api/v1")
-app.include_router(logs.router, prefix="/api/v1")
\ No newline at end of file
+app.include_router(auth.router, prefix="/api/v1")
diff --git a/backend/app/models/__init__.py b/backend/app/models/__init__.py
index 07797bd..88d1930 100644
--- a/backend/app/models/__init__.py
+++ b/backend/app/models/__init__.py
@@ -1,4 +1,4 @@
-from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
-
-class Base(DeclarativeBase):
-    pass
\ No newline at end of file
+from sqlalchemy.orm import DeclarativeBase
+
+class Base(DeclarativeBase):
+    pass
diff --git a/backend/app/models/clusters.py b/backend/app/models/clusters.py
deleted file mode 100644
index 6e1733e..0000000
--- a/backend/app/models/clusters.py
+++ /dev/null
@@ -1,34 +0,0 @@
-from sqlalchemy.orm import Mapped, mapped_column
-from sqlalchemy import String, Integer
-from sqlalchemy.dialects.postgresql import UUID, JSONB
-from sqlalchemy import TIMESTAMP
-from app.models import Base
-
-class Cluster(Base):
-    __tablename__ = "clusters"
-
-    id: Mapped[int] = mapped_column(primary_key=True)
-    uuid: Mapped[str] = mapped_column(UUID(as_uuid=False), unique=True)
-    name: Mapped[str] = mapped_column(String(100), unique=True)
-    type: Mapped[str] = mapped_column(String(50))
-    node_count: Mapped[int] = mapped_column(Integer, default=0)
-    health_status: Mapped[str] = mapped_column(String(20), default="unknown")
-    description: Mapped[str | None] = mapped_column(String, nullable=True)
-    config_info: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
-    created_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-    updated_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-
-    def to_dict(self) -> dict:
-        """将集群对象转换为可序列化字典。"""
-        return {
-            "id": self.id,
-            "uuid": self.uuid,
-            "name": self.name,
-            "type": self.type,
-            "node_count": self.node_count,
-            "health_status": self.health_status,
-            "description": self.description,
-            "config_info": self.config_info,
-            "created_at": self.created_at.isoformat() if self.created_at else None,
-            "updated_at": self.updated_at.isoformat() if self.updated_at else None,
-        }
\ No newline at end of file
diff --git a/backend/app/models/exec_logs.py b/backend/app/models/exec_logs.py
deleted file mode 100644
index 0da859f..0000000
--- a/backend/app/models/exec_logs.py
+++ /dev/null
@@ -1,39 +0,0 @@
-from sqlalchemy.orm import Mapped, mapped_column
-from sqlalchemy import String, Integer
-from sqlalchemy.dialects.postgresql import JSONB
-from sqlalchemy import TIMESTAMP, Text
-from app.models import Base
-
-class ExecLog(Base):
-    __tablename__ = "exec_logs"
-
-    id: Mapped[int] = mapped_column(primary_key=True)
-    exec_id: Mapped[str] = mapped_column(String(32), unique=True)
-    fault_id: Mapped[str] = mapped_column(String(32))
-    command_type: Mapped[str] = mapped_column(String(50))
-    script_path: Mapped[str | None] = mapped_column(String(255), nullable=True)
-    command_content: Mapped[str] = mapped_column(Text)
-    target_nodes: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
-    risk_level: Mapped[str] = mapped_column(String(20), default="medium")
-    execution_status: Mapped[str] = mapped_column(String(20), default="pending")
-    start_time: Mapped[str | None] = mapped_column(TIMESTAMP(timezone=True), nullable=True)
-    end_time: Mapped[str | None] = mapped_column(TIMESTAMP(timezone=True), nullable=True)
-    duration: Mapped[int | None] = mapped_column(Integer, nullable=True)
-    stdout_log: Mapped[str | None] = mapped_column(Text, nullable=True)
-    stderr_log: Mapped[str | None] = mapped_column(Text, nullable=True)
-    exit_code: Mapped[int | None] = mapped_column(Integer, nullable=True)
-    operator: Mapped[str] = mapped_column(String(50), default="system")
-    created_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-    updated_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-
-    def to_dict(self) -> dict:
-        """将执行日志转换为可序列化字典。"""
-        return {
-            "exec_id": self.exec_id,
-            "fault_id": self.fault_id,
-            "command_type": self.command_type,
-            "execution_status": self.execution_status,
-            "start_time": self.start_time.isoformat() if self.start_time else None,
-            "end_time": self.end_time.isoformat() if self.end_time else None,
-            "exit_code": self.exit_code,
-        }
\ No newline at end of file
diff --git a/backend/app/models/fault_records.py b/backend/app/models/fault_records.py
deleted file mode 100644
index b933d04..0000000
--- a/backend/app/models/fault_records.py
+++ /dev/null
@@ -1,38 +0,0 @@
-from sqlalchemy.orm import Mapped, mapped_column
-from sqlalchemy import String
-from sqlalchemy.dialects.postgresql import JSONB
-from sqlalchemy import TIMESTAMP
-from app.models import Base
-
-class FaultRecord(Base):
-    __tablename__ = "fault_records"
-
-    id: Mapped[int] = mapped_column(primary_key=True)
-    fault_id: Mapped[str] = mapped_column(String(32), unique=True)
-    cluster_id: Mapped[int | None] = mapped_column(nullable=True)
-    fault_type: Mapped[str] = mapped_column(String(50))
-    fault_level: Mapped[str] = mapped_column(String(20), default="medium")
-    title: Mapped[str] = mapped_column(String(200))
-    description: Mapped[str | None] = mapped_column(String, nullable=True)
-    affected_nodes: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
-    affected_clusters: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
-    root_cause: Mapped[str | None] = mapped_column(String, nullable=True)
-    repair_suggestion: Mapped[str | None] = mapped_column(String, nullable=True)
-    status: Mapped[str] = mapped_column(String(20), default="detected")
-    assignee: Mapped[str | None] = mapped_column(String(50), nullable=True)
-    reporter: Mapped[str] = mapped_column(String(50), default="system")
-    created_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-    updated_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-    resolved_at: Mapped[str | None] = mapped_column(TIMESTAMP(timezone=True), nullable=True)
-
-    def to_dict(self) -> dict:
-        """将故障记录转换为可序列化字典。"""
-        return {
-            "fault_id": self.fault_id,
-            "cluster_id": self.cluster_id,
-            "fault_type": self.fault_type,
-            "fault_level": self.fault_level,
-            "title": self.title,
-            "status": self.status,
-            "created_at": self.created_at.isoformat() if self.created_at else None,
-        }
\ No newline at end of file
diff --git a/backend/app/models/system_logs.py b/backend/app/models/system_logs.py
deleted file mode 100644
index 21a9ce4..0000000
--- a/backend/app/models/system_logs.py
+++ /dev/null
@@ -1,33 +0,0 @@
-from sqlalchemy.orm import Mapped, mapped_column
-from sqlalchemy import String, Boolean
-from sqlalchemy import TIMESTAMP, Text
-from app.models import Base
-
-class SystemLog(Base):
-    __tablename__ = "system_logs"
-
-    id: Mapped[int] = mapped_column(primary_key=True)
-    log_id: Mapped[str] = mapped_column(String(32), unique=True)
-    fault_id: Mapped[str | None] = mapped_column(String(32), nullable=True)
-    cluster_id: Mapped[int | None] = mapped_column(nullable=True)
-    timestamp: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-    host: Mapped[str] = mapped_column(String(100))
-    service: Mapped[str] = mapped_column(String(50))
-    log_level: Mapped[str] = mapped_column(String(10))
-    message: Mapped[str] = mapped_column(Text)
-    exception: Mapped[str | None] = mapped_column(Text, nullable=True)
-    raw_log: Mapped[str | None] = mapped_column(Text, nullable=True)
-    processed: Mapped[bool] = mapped_column(Boolean, default=False)
-    created_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
-
-    def to_dict(self) -> dict:
-        """将系统日志转换为可序列化字典。"""
-        return {
-            "log_id": self.log_id,
-            "cluster_id": self.cluster_id,
-            "timestamp": self.timestamp.isoformat() if self.timestamp else None,
-            "service": self.service,
-            "log_level": self.log_level,
-            "message": self.message,
-            "processed": self.processed,
-        }
\ No newline at end of file
diff --git a/backend/app/models/users.py b/backend/app/models/users.py
new file mode 100644
index 0000000..b6092eb
--- /dev/null
+++ b/backend/app/models/users.py
@@ -0,0 +1,17 @@
+from sqlalchemy.orm import Mapped, mapped_column
+from sqlalchemy import String, Boolean
+from sqlalchemy import TIMESTAMP
+from . import Base
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    username: Mapped[str] = mapped_column(String(50), unique=True)
+    email: Mapped[str] = mapped_column(String(100), unique=True)
+    password_hash: Mapped[str] = mapped_column(String(255))
+    full_name: Mapped[str] = mapped_column(String(100))
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+    last_login: Mapped[str | None] = mapped_column(TIMESTAMP(timezone=True), nullable=True)
+    created_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
+    updated_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
diff --git a/backend/app/routers/auth.py b/backend/app/routers/auth.py
new file mode 100644
index 0000000..eafa83b
--- /dev/null
+++ b/backend/app/routers/auth.py
@@ -0,0 +1,30 @@
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, update, func
+from ..db import get_db
+from ..models.users import User
+from passlib.hash import bcrypt
+
+router = APIRouter()
+
+class LoginRequest(BaseModel):
+    username: str
+    password: str
+
+@router.post("/user/login")
+async def login(req: LoginRequest, db: AsyncSession = Depends(get_db)):
+    """处理登录请求，验证用户名与密码。"""
+    result = await db.execute(select(User).where(User.username == req.username).limit(1))
+    user = result.scalars().first()
+    if not user:
+        raise HTTPException(status_code=401, detail="invalid_credentials")
+    if not user.is_active:
+        raise HTTPException(status_code=403, detail="inactive_user")
+    if not bcrypt.verify(req.password, user.password_hash):
+        raise HTTPException(status_code=401, detail="invalid_credentials")
+    await db.execute(
+        update(User).where(User.id == user.id).values(last_login=func.now(), updated_at=func.now())
+    )
+    await db.commit()
+    return {"ok": True, "username": user.username, "fullName": user.full_name}
diff --git a/backend/app/routers/clusters.py b/backend/app/routers/clusters.py
deleted file mode 100644
index 9dd894f..0000000
--- a/backend/app/routers/clusters.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from fastapi import APIRouter, Depends
-from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy import select
-from app.db import get_db
-from app.models.clusters import Cluster
-
-router = APIRouter()
-
-@router.get("/clusters")
-async def list_clusters(db: AsyncSession = Depends(get_db)):
-    """查询集群列表。"""
-    result = await db.execute(select(Cluster).limit(100))
-    rows = result.scalars().all()
-    return {"total": len(rows), "list": [c.to_dict() for c in rows]}
\ No newline at end of file
diff --git a/backend/app/routers/faults.py b/backend/app/routers/faults.py
deleted file mode 100644
index 0d044a8..0000000
--- a/backend/app/routers/faults.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from fastapi import APIRouter, Depends
-from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy import select
-from app.db import get_db
-from app.models.fault_records import FaultRecord
-
-router = APIRouter()
-
-@router.get("/faults")
-async def list_faults(db: AsyncSession = Depends(get_db)):
-    """查询故障记录。"""
-    result = await db.execute(select(FaultRecord).limit(100))
-    rows = result.scalars().all()
-    return {"total": len(rows), "list": [f.to_dict() for f in rows]}
\ No newline at end of file
diff --git a/backend/app/routers/health.py b/backend/app/routers/health.py
index e6051bc..dcf4653 100644
--- a/backend/app/routers/health.py
+++ b/backend/app/routers/health.py
@@ -1,11 +1,8 @@
-from fastapi import APIRouter, Depends
-from sqlalchemy.ext.asyncio import AsyncSession
-from app.db import get_db
+from fastapi import APIRouter
 
 router = APIRouter()
 
 @router.get("/health")
-async def health_check(db: AsyncSession = Depends(get_db)):
-    """健康检查：测试数据库连通性。"""
-    await db.execute("SELECT 1")
-    return {"status": "ok"}
\ No newline at end of file
+async def health_check():
+    """简单健康检查，用于开发阶段验证服务可用。"""
+    return {"status": "ok"}
diff --git a/backend/app/routers/logs.py b/backend/app/routers/logs.py
deleted file mode 100644
index c8566d4..0000000
--- a/backend/app/routers/logs.py
+++ /dev/null
@@ -1,23 +0,0 @@
-from fastapi import APIRouter, Depends, Query
-from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy import select
-from app.db import get_db
-from app.models.system_logs import SystemLog
-
-router = APIRouter()
-
-@router.get("/logs")
-async def list_logs(
-    db: AsyncSession = Depends(get_db),
-    level: str | None = Query(None),
-    page: int = Query(1, ge=1),
-    pageSize: int = Query(10, ge=1, le=100),
-):
-    """查询系统日志，支持按级别筛选与分页。"""
-    stmt = select(SystemLog)
-    if level:
-        stmt = stmt.where(SystemLog.log_level == level)
-    stmt = stmt.offset((page - 1) * pageSize).limit(pageSize)
-    result = await db.execute(stmt)
-    rows = result.scalars().all()
-    return {"total": len(rows), "list": [l.to_dict() for l in rows]}
\ No newline at end of file
diff --git a/backend/requirements.txt b/backend/requirements.txt
new file mode 100644
index 0000000..534317a
--- /dev/null
+++ b/backend/requirements.txt
@@ -0,0 +1,6 @@
+fastapi
+uvicorn[standard]
+SQLAlchemy
+asyncpg
+python-dotenv
+passlib[bcrypt]
diff --git a/doc/project/数据库建表脚本_postgres.sql b/doc/project/数据库建表脚本_postgres.sql
index 98c2361..6d0139a 100644
--- a/doc/project/数据库建表脚本_postgres.sql
+++ b/doc/project/数据库建表脚本_postgres.sql
@@ -476,7 +476,7 @@ INSERT INTO user_cluster_mapping (user_id, cluster_id, role_id)
 SELECT u.id, c.id, r.id FROM users u, clusters c, roles r WHERE u.username = 'admin' AND c.name = 'Hadoop主集群' AND r.role_key = 'cluster_admin';
 INSERT INTO user_cluster_mapping (user_id, cluster_id, role_id)
 SELECT u.id, c.id, r.id FROM users u, clusters c, roles r WHERE u.username = 'admin' AND c.name = 'Hadoop测试集群' AND r.role_key = 'cluster_admin';
-
+    
 -- =====================================================
 -- 脚本执行完成
 -- =====================================================
diff --git a/frontend-vue/package-lock.json b/frontend-vue/package-lock.json
index 6e94841..619b835 100644
--- a/frontend-vue/package-lock.json
+++ b/frontend-vue/package-lock.json
@@ -1411,6 +1411,7 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "devOptional": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -1425,6 +1426,7 @@
       "integrity": "sha512-o5a9xKjbtuhY6Bi5S3+HvbRERmouabWbyUcpXXUA1u+GNUKoROi9byOJ8M0nHbHYHkYICiMlqxkg1KkYmm25Sw==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "esbuild": "^0.21.3",
         "postcss": "^8.4.43",
@@ -1484,6 +1486,7 @@
       "resolved": "https://registry.npmjs.org/vue/-/vue-3.5.25.tgz",
       "integrity": "sha512-YLVdgv2K13WJ6n+kD5owehKtEXwdwXuj2TTyJMsO7pSeKw2bfRNZGjhB7YzrpbMYj5b5QsUebHpOqR3R3ziy/g==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@vue/compiler-dom": "3.5.25",
         "@vue/compiler-sfc": "3.5.25",
diff --git a/src/backend/app/db.py b/src/backend/app/db.py
index 9297ae3..5c1fcd9 100644
--- a/src/backend/app/db.py
+++ b/src/backend/app/db.py
@@ -7,4 +7,4 @@ SessionLocal = async_sessionmaker(engine, expire_on_commit=False, class_=AsyncSe
 async def get_db() -> AsyncSession:
     """获取一个异步数据库会话，用于依赖注入。"""
     async with SessionLocal() as session:
-        yield session
\ No newline at end of file
+        yield session
diff --git a/src/backend/app/main.py b/src/backend/app/main.py
index 45c5af2..a283e66 100644
--- a/src/backend/app/main.py
+++ b/src/backend/app/main.py
@@ -1,6 +1,6 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from .routers import health, clusters, faults, logs
+from .routers import user
 
 app = FastAPI(title="Hadoop Fault Detecting API", version="v1")
 
@@ -12,7 +12,4 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-app.include_router(health.router, prefix="/api/v1")
-app.include_router(clusters.router, prefix="/api/v1")
-app.include_router(faults.router, prefix="/api/v1")
-app.include_router(logs.router, prefix="/api/v1")
\ No newline at end of file
+app.include_router(user.router, prefix="/api/v1")
diff --git a/src/backend/app/models/__init__.py b/src/backend/app/models/__init__.py
index ac5d784..f75ec44 100644
--- a/src/backend/app/models/__init__.py
+++ b/src/backend/app/models/__init__.py
@@ -1,4 +1,4 @@
-from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
+from sqlalchemy.orm import DeclarativeBase
 
 class Base(DeclarativeBase):
     pass
diff --git a/src/backend/app/models/users.py b/src/backend/app/models/users.py
new file mode 100644
index 0000000..b6092eb
--- /dev/null
+++ b/src/backend/app/models/users.py
@@ -0,0 +1,17 @@
+from sqlalchemy.orm import Mapped, mapped_column
+from sqlalchemy import String, Boolean
+from sqlalchemy import TIMESTAMP
+from . import Base
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    username: Mapped[str] = mapped_column(String(50), unique=True)
+    email: Mapped[str] = mapped_column(String(100), unique=True)
+    password_hash: Mapped[str] = mapped_column(String(255))
+    full_name: Mapped[str] = mapped_column(String(100))
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+    last_login: Mapped[str | None] = mapped_column(TIMESTAMP(timezone=True), nullable=True)
+    created_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
+    updated_at: Mapped[str] = mapped_column(TIMESTAMP(timezone=True))
diff --git a/src/backend/app/routers/user.py b/src/backend/app/routers/user.py
new file mode 100644
index 0000000..eafa83b
--- /dev/null
+++ b/src/backend/app/routers/user.py
@@ -0,0 +1,30 @@
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, update, func
+from ..db import get_db
+from ..models.users import User
+from passlib.hash import bcrypt
+
+router = APIRouter()
+
+class LoginRequest(BaseModel):
+    username: str
+    password: str
+
+@router.post("/user/login")
+async def login(req: LoginRequest, db: AsyncSession = Depends(get_db)):
+    """处理登录请求，验证用户名与密码。"""
+    result = await db.execute(select(User).where(User.username == req.username).limit(1))
+    user = result.scalars().first()
+    if not user:
+        raise HTTPException(status_code=401, detail="invalid_credentials")
+    if not user.is_active:
+        raise HTTPException(status_code=403, detail="inactive_user")
+    if not bcrypt.verify(req.password, user.password_hash):
+        raise HTTPException(status_code=401, detail="invalid_credentials")
+    await db.execute(
+        update(User).where(User.id == user.id).values(last_login=func.now(), updated_at=func.now())
+    )
+    await db.commit()
+    return {"ok": True, "username": user.username, "fullName": user.full_name}
diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index bbcbbb8..534317a 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -3,4 +3,4 @@ uvicorn[standard]
 SQLAlchemy
 asyncpg
 python-dotenv
-psycopg2-binary
+passlib[bcrypt]