feat: binary storage api

pkg/entity/persistence/bstorage.py

@@ -0,0 +1,22 @@
+import sqlalchemy
+
+from .base import Base
+
+
+class BinaryStorage(Base):
+    """Current for plugin use only"""
+
+    __tablename__ = 'binary_storages'
+
+    unique_key = sqlalchemy.Column(sqlalchemy.String(255), primary_key=True)
+    key = sqlalchemy.Column(sqlalchemy.String(255), nullable=False)
+    owner_type = sqlalchemy.Column(sqlalchemy.String(255), nullable=False)
+    owner = sqlalchemy.Column(sqlalchemy.String(255), nullable=False)
+    value = sqlalchemy.Column(sqlalchemy.LargeBinary, nullable=False)
+    created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, server_default=sqlalchemy.func.now())
+    updated_at = sqlalchemy.Column(
+        sqlalchemy.DateTime,
+        nullable=False,
+        server_default=sqlalchemy.func.now(),
+        onupdate=sqlalchemy.func.now(),
+    )