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_history.go

@@ -0,0 +1,72 @@
+package schema
+
+import (
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/domain"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/entsql"
+	"entgo.io/ent/schema"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+)
+
+// ChannelMonitorHistory holds the schema definition for the ChannelMonitorHistory entity.
+// 渠道监控历史：每次检测每个模型一行记录。明细只保留 1 天，超过 1 天由每日维护任务
+// 先聚合到 channel_monitor_daily_rollups，再分批物理删（不用软删除：日志类表无恢复
+// 需求，软删会让行和索引只增不减，徒增磁盘和查询开销）。
+type ChannelMonitorHistory struct {
+	ent.Schema
+}
+
+func (ChannelMonitorHistory) Annotations() []schema.Annotation {
+	return []schema.Annotation{
+		entsql.Annotation{Table: "channel_monitor_histories"},
+	}
+}
+
+func (ChannelMonitorHistory) Fields() []ent.Field {
+	return []ent.Field{
+		field.Int64("monitor_id"),
+		field.String("model").
+			NotEmpty().
+			MaxLen(200),
+		field.Enum("status").
+			Values("operational", "degraded", "failed", "error"),
+		field.Int("latency_ms").
+			Optional().
+			Nillable(),
+		field.Int("ping_latency_ms").
+			Optional().
+			Nillable(),
+		field.String("message").
+			Optional().
+			Default("").
+			MaxLen(500),
+		// quota: 配额模式（check_mode = quota / quota_probe）检测时附带的
+		// 归一化配额快照（domain.MonitorQuotaSnapshot，JSONB）；探活模式为 NULL。
+		field.JSON("quota", &domain.MonitorQuotaSnapshot{}).
+			Optional(),
+		field.Time("checked_at").
+			Default(time.Now),
+	}
+}
+
+func (ChannelMonitorHistory) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("monitor", ChannelMonitor.Type).
+			Ref("history").
+			Field("monitor_id").
+			Unique().
+			Required(),
+	}
+}
+
+func (ChannelMonitorHistory) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("monitor_id", "model", "checked_at"),
+		index.Fields("checked_at"),
+	}
+}