Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/ent/schema/channel_monitor_daily_rollup.go

@@ -0,0 +1,66 @@
+package schema
+
+import (
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/entsql"
+	"entgo.io/ent/schema"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+)
+
+// ChannelMonitorDailyRollup 按 (monitor_id, model, bucket_date) 维度聚合的渠道监控日统计。
+// 每天的明细被收敛为一行（保留 status 分布 + 延迟和），用于 7d/15d/30d 窗口的可用率
+// 加权计算（avg_latency = sum_latency_ms / count_latency；availability = ok_count / total_checks）。
+// 超过保留期由每日维护任务分批物理删（不用软删除，理由同 channel_monitor_history）。
+type ChannelMonitorDailyRollup struct {
+	ent.Schema
+}
+
+func (ChannelMonitorDailyRollup) Annotations() []schema.Annotation {
+	return []schema.Annotation{
+		entsql.Annotation{Table: "channel_monitor_daily_rollups"},
+	}
+}
+
+func (ChannelMonitorDailyRollup) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int64("monitor_id"),
+		field.String("model").
+			NotEmpty().
+			MaxLen(200),
+		field.Time("bucket_date").
+			SchemaType(map[string]string{dialect.Postgres: "date"}),
+		field.Int("total_checks").Default(0),
+		field.Int("ok_count").Default(0),
+		field.Int("operational_count").Default(0),
+		field.Int("degraded_count").Default(0),
+		field.Int("failed_count").Default(0),
+		field.Int("error_count").Default(0),
+		field.Int64("sum_latency_ms").Default(0),
+		field.Int("count_latency").Default(0),
+		field.Int64("sum_ping_latency_ms").Default(0),
+		field.Int("count_ping_latency").Default(0),
+		field.Time("computed_at").Default(time.Now).UpdateDefault(time.Now),
+	}
+}
+
+func (ChannelMonitorDailyRollup) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("monitor", ChannelMonitor.Type).
+			Ref("daily_rollups").
+			Field("monitor_id").
+			Unique().
+			Required(),
+	}
+}
+
+func (ChannelMonitorDailyRollup) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("monitor_id", "model", "bucket_date").Unique(),
+		index.Fields("bucket_date"),
+	}
+}