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/__init__.py

@@ -6,17 +6,28 @@ from typing import TYPE_CHECKING
 
 # Interfaces are always available; they have no optional backend dependencies.
 from . import adapters
-from .config import MinioConfig, PostgresConfig, RedisConfig, load_dotenv
+from .config import (
+    FileQueueConfig,
+    MinioConfig,
+    PostgresConfig,
+    RedisConfig,
+    load_dotenv,
+)
 from .interfaces import (
     ConnectionAwareInterface,
     ContextAwareInterface,
     JsonRepositoryInterface,
     ObjectRepositoryInterface,
+    QueueRepositoryInterface,
     TableRepositoryInterface,
 )
 
 # Adapters are imported only for static type checkers; runtime loading is delegated below.
 if TYPE_CHECKING:
+    from .adapters.file_backed_queue_adapter import (
+        FileBackedQueueAdapter as FileBackedQueueAdapter,
+    )
+    from .adapters.memory_queue_adapter import MemoryQueueAdapter as MemoryQueueAdapter
     from .adapters.minio_adapter import MinioAdapter as MinioAdapter
     from .adapters.postgres_adapter import PostgresAdapter as PostgresAdapter
     from .adapters.redis_adapter import RedisAdapter as RedisAdapter
@@ -24,10 +35,12 @@ if TYPE_CHECKING:
 __all__ = [
     "ConnectionAwareInterface",
     "ContextAwareInterface",
+    "FileQueueConfig",
     "JsonRepositoryInterface",
     "MinioConfig",
     "ObjectRepositoryInterface",
     "PostgresConfig",
+    "QueueRepositoryInterface",
     "RedisConfig",
     "TableRepositoryInterface",
     "load_dotenv",