Add QueueRepositoryInterface with memory and file-backed adapters.

Provide a generic disk-backed FIFO queue with configurable path, retention, and dedup keys so consumers can buffer items across restarts without optional extras.

Co-authored-by: Cursor <cursoragent@cursor.com>

python_repositories/adapters/__init__.py

@@ -11,6 +11,8 @@ from typing import TYPE_CHECKING
 
 # Adapters are imported only for static type checkers; runtime loading is deferred below.
 if TYPE_CHECKING:
+    from .file_backed_queue_adapter import FileBackedQueueAdapter
+    from .memory_queue_adapter import MemoryQueueAdapter
     from .minio_adapter import MinioAdapter
     from .postgres_adapter import PostgresAdapter
     from .redis_adapter import RedisAdapter
@@ -22,12 +24,19 @@ _LAZY_EXPORTS = {
     "RedisAdapter": (".redis_adapter", "RedisAdapter"),
     "MinioAdapter": (".minio_adapter", "MinioAdapter"),
     "PostgresAdapter": (".postgres_adapter", "PostgresAdapter"),
+    "MemoryQueueAdapter": (".memory_queue_adapter", "MemoryQueueAdapter"),
+    "FileBackedQueueAdapter": (
+        ".file_backed_queue_adapter",
+        "FileBackedQueueAdapter",
+    ),
 }
 
 __all__ = [
     "RedisAdapter",
     "MinioAdapter",
     "PostgresAdapter",
+    "MemoryQueueAdapter",
+    "FileBackedQueueAdapter",
 ]