feat: add real PDF ingestion workflow

services/api/app/integrations/storage.py

@@ -1,5 +1,6 @@
 from dataclasses import dataclass
 from collections.abc import Mapping
+from io import BytesIO
 from typing import Any
 
 import boto3
@@ -70,3 +71,28 @@ class S3Storage:
             object_key=object_key,
             expires_in=int(self._value("s3_presigned_url_ttl_seconds", 900)),
         )
+
+    def put_input(self, object_key: str, content: bytes, content_type: str) -> None:
+        self._put(self._value("s3_bucket_inputs"), object_key, content, content_type)
+
+    def put_output(self, object_key: str, content: bytes, content_type: str) -> None:
+        self._put(self._value("s3_bucket_derived"), object_key, content, content_type)
+
+    def get_output(self, object_key: str) -> tuple[bytes, str]:
+        if not self.configured:
+            raise RuntimeError("MinIO/S3 is not configured.")
+        response = self._client().get_object(
+            Bucket=self._value("s3_bucket_derived"),
+            Key=object_key,
+        )
+        return response["Body"].read(), response.get("ContentType", "application/octet-stream")
+
+    def _put(self, bucket: str, object_key: str, content: bytes, content_type: str) -> None:
+        if not self.configured:
+            raise RuntimeError("MinIO/S3 is not configured.")
+        self._client().upload_fileobj(
+            BytesIO(content),
+            bucket,
+            object_key,
+            ExtraArgs={"ContentType": content_type},
+        )