Add alembic revision for biz_state_task.collect_queued_at.

Fixes /v1/biz-state/tasks 500 when ORM expects the column but DB was still on prior head.

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

alembic/versions/20260922_biz_state_queued.py

@@ -0,0 +1,51 @@
+"""Add biz_state_task.collect_queued_at for collect queue claim.
+
+Revision ID: 20260922_biz_state_queued
+Revises: 20260921_exec_policy
+Create Date: 2026-09-22
+"""
+
+from __future__ import annotations
+
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "20260922_biz_state_queued"
+down_revision: Union[str, Sequence[str], None] = "20260921_exec_policy"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    dialect = str(getattr(bind.dialect, "name", "") or "").lower()
+    if dialect.startswith("postgres"):
+        op.execute(
+            "ALTER TABLE biz_state_task ADD COLUMN IF NOT EXISTS collect_queued_at TIMESTAMP"
+        )
+    else:
+        # SQLite / others: best-effort
+        try:
+            op.add_column(
+                "biz_state_task",
+                __import__("sqlalchemy", fromlist=["Column"]).Column(
+                    "collect_queued_at",
+                    __import__("sqlalchemy", fromlist=["DateTime"]).DateTime(),
+                    nullable=True,
+                ),
+            )
+        except Exception:
+            pass
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    dialect = str(getattr(bind.dialect, "name", "") or "").lower()
+    if dialect.startswith("postgres"):
+        op.execute("ALTER TABLE biz_state_task DROP COLUMN IF EXISTS collect_queued_at")
+    else:
+        try:
+            op.drop_column("biz_state_task", "collect_queued_at")
+        except Exception:
+            pass