```

feat: 添加飞书用户模块和订阅功能支持

- 新增feishu_users模块用于处理飞书用户身份验证和权限管理
- 新增subscriptions模块用于处理订阅相关功能
- 新增personalization模块用于个性化服务
- 在alembic迁移配置中注册新的模型模块
- 在API路由器中添加feishu_users和subscriptions路由
- 实现事件调度服务的改进，包括错误处理和状态更新优化
- 添加飞书命令处理的权限检查机制
- 实现飞书应用票据事件处理
- 改进审计日志记录功能
```

alembic/versions/202607260001_v3_runtime_reliability.py

@@ -0,0 +1,51 @@
+"""Harden V3 heartbeat identity and concurrent updates.
+
+Revision ID: 202607260001
+Revises: 202607150001
+Create Date: 2026-07-26
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "202607260001"
+down_revision = "202607150001"
+branch_labels = None
+depends_on = None
+
+HEARTBEAT_TABLE = "system_heartbeats"
+HEARTBEAT_IDENTITY_CONSTRAINT = "uq_system_heartbeat_component_instance"
+
+
+def upgrade() -> None:
+    op.execute(
+        sa.text(
+            """
+            DELETE FROM system_heartbeats
+            WHERE id IN (
+                SELECT id
+                FROM (
+                    SELECT
+                        id,
+                        ROW_NUMBER() OVER (
+                            PARTITION BY component, instance_id
+                            ORDER BY last_seen_at DESC, id DESC
+                        ) AS duplicate_rank
+                    FROM system_heartbeats
+                ) ranked
+                WHERE duplicate_rank > 1
+            )
+            """
+        )
+    )
+    with op.batch_alter_table(HEARTBEAT_TABLE) as batch_op:
+        batch_op.create_unique_constraint(
+            HEARTBEAT_IDENTITY_CONSTRAINT,
+            ["component", "instance_id"],
+        )
+
+
+def downgrade() -> None:
+    with op.batch_alter_table(HEARTBEAT_TABLE) as batch_op:
+        batch_op.drop_constraint(HEARTBEAT_IDENTITY_CONSTRAINT, type_="unique")