feat: 异步沉淀主题摘要和成长档案

ai_knowledge_base_v2/apps/backend/alembic/versions/0024_topic_settlement_async_jobs.py

@@ -0,0 +1,59 @@
+"""add durable topic settlement job fields
+
+Revision ID: 0024_topic_settlement_jobs
+Revises: 0023_simple_knowledge_route
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "0024_topic_settlement_jobs"
+down_revision = "0023_simple_knowledge_route"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "sys_topic_summary",
+        sa.Column("attempt_count", sa.Integer(), nullable=False, server_default="0"),
+    )
+    op.add_column(
+        "sys_topic_summary",
+        sa.Column("max_attempts", sa.Integer(), nullable=False, server_default="3"),
+    )
+    op.add_column("sys_topic_summary", sa.Column("next_run_at", sa.DateTime(), nullable=True))
+    op.add_column("sys_topic_summary", sa.Column("locked_at", sa.DateTime(), nullable=True))
+    op.add_column("sys_topic_summary", sa.Column("locked_by", sa.String(length=120), nullable=True))
+    op.add_column("sys_topic_summary", sa.Column("last_started_at", sa.DateTime(), nullable=True))
+    op.add_column("sys_topic_summary", sa.Column("finished_at", sa.DateTime(), nullable=True))
+    op.execute(
+        "UPDATE sys_topic_summary "
+        "SET finished_at = generated_at "
+        "WHERE status IN ('success', 'fallback', 'failed')"
+    )
+    op.create_index(
+        "ix_topic_summary_job_due",
+        "sys_topic_summary",
+        ["status", "next_run_at", "id"],
+    )
+    op.create_index(
+        "ix_topic_summary_job_stale",
+        "sys_topic_summary",
+        ["status", "locked_at"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_topic_summary_job_stale", table_name="sys_topic_summary")
+    op.drop_index("ix_topic_summary_job_due", table_name="sys_topic_summary")
+    op.drop_column("sys_topic_summary", "finished_at")
+    op.drop_column("sys_topic_summary", "last_started_at")
+    op.drop_column("sys_topic_summary", "locked_by")
+    op.drop_column("sys_topic_summary", "locked_at")
+    op.drop_column("sys_topic_summary", "next_run_at")
+    op.drop_column("sys_topic_summary", "max_attempts")
+    op.drop_column("sys_topic_summary", "attempt_count")