fix access_key_id name

app/config.py

@@ -3,7 +3,7 @@ from pydantic_settings import BaseSettings
 class Settings(BaseSettings):
     # S3 settings
     s3_endpoint: str = "http://localhost:9000"
-    s3_access_key: str = "minioadmin"
+    s3_access_key_id: str = "minioadmin"
     s3_secret_key: str = "minioadmin"
     s3_bucket: str = "document-bucket"
     s3_region: str = "us-east-1"

app/s3.py

@@ -12,7 +12,7 @@ def get_client():
     return boto3.client(
         "s3",
         endpoint_url=settings.s3_endpoint,
-        aws_access_key_id=settings.s3_access_key,
+        aws_access_key_id=settings.s3_access_key_id,
         aws_secret_access_key=settings.s3_secret_key,
         config=Config(signature_version="s3v4"),
         region_name=settings.s3_region