chore: import upstream snapshot with attribution

servers/fastapi/models/sql/async_task.py

@@ -0,0 +1,37 @@
+from datetime import datetime
+import secrets
+from typing import Any, Optional
+
+from sqlalchemy import JSON, Column, DateTime
+from sqlmodel import Field, SQLModel
+
+from utils.datetime_utils import get_current_utc_datetime
+
+
+class AsyncTaskModel(SQLModel, table=True):
+    __tablename__ = "async_tasks"
+
+    id: str = Field(
+        default_factory=lambda: f"task-{secrets.token_hex(32)}",
+        primary_key=True,
+    )
+    type: str = Field(index=True)
+    status: str = Field(index=True)
+    message: Optional[str] = None
+    error: Optional[dict[str, Any]] = Field(sa_column=Column(JSON), default=None)
+    data: Optional[dict[str, Any]] = Field(sa_column=Column(JSON), default=None)
+    created_at: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True),
+            nullable=False,
+            default=get_current_utc_datetime,
+        )
+    )
+    updated_at: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True),
+            nullable=False,
+            default=get_current_utc_datetime,
+            onupdate=get_current_utc_datetime,
+        )
+    )