feat(fetcher): add data fetcher

requirements.txt

@@ -2,8 +2,8 @@ aiomysql==0.2.0
 alembic==1.16.4
 annotated-types==0.7.0
 anyio==4.9.0
-async-timeout==5.0.1
 bcrypt==4.3.0
+certifi==2025.7.14
 cffi==1.17.1
 cfgv==3.4.0
 click==8.2.1
@@ -17,7 +17,9 @@ fastapi==0.116.1
 filelock==3.18.0
 greenlet==3.2.3
 h11==0.16.0
+httpcore==1.0.9
 httptools==0.6.4
+httpx==0.28.1
 identify==2.6.12
 idna==3.10
 mako==1.3.10
@@ -48,7 +50,6 @@ starlette==0.47.2
 typing-extensions==4.14.1
 typing-inspection==0.4.1
 uvicorn==0.35.0
-uvloop==0.21.0
 virtualenv==20.32.0
 watchfiles==1.1.0
-websockets==15.0.1
+websockets==15.0.1