v1.9.7: S3 folder download — recursive with preserved directory structure

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/s3_client.py

@@ -306,6 +306,30 @@ class S3Client:
             log.error("S3 presigned URL failed: %s", exc)
             return None
 
+    def list_all_objects(self, bucket: str, prefix: str = "") -> list[dict]:
+        """List ALL objects under prefix recursively (no delimiter).
+        Returns list of {'Key', 'Size', 'LastModified'}.
+        """
+        if not self._ensure_connected():
+            return []
+        try:
+            objects = []
+            paginator = self._client.get_paginator("list_objects_v2")
+            kwargs = {"Bucket": bucket}
+            if prefix:
+                kwargs["Prefix"] = prefix
+            for page in paginator.paginate(**kwargs):
+                for obj in page.get("Contents", []):
+                    # Skip "folder" markers (zero-byte keys ending with /)
+                    if obj["Key"].endswith("/") and obj.get("Size", 0) == 0:
+                        continue
+                    objects.append(obj)
+            self._last_ok = time.time()
+            return objects
+        except Exception as exc:
+            log.error("S3 list_all_objects failed: %s", exc)
+            return []
+
     def delete_prefix(self, bucket: str, prefix: str) -> int:
         """Recursively delete all objects under a prefix. Returns count deleted."""
         if not self._ensure_connected():