feat(jpush): add vendor-specific message classification support for push notifications

- Add OPPO category/notify_level support (2024.11.20 regulation: category required when notify_level present)
- Add Honor importance field (NORMAL=service/LOW=marketing) for notification classification
- Add vivo category field (IM/ACCOUNT) for message scenario identification
- Set Xiaomi channel/template defaults in code (system=153609, chat=153608, templates P10761/M10289)
- Add classification option to JPush push payloads (0=operation, 1=system)
- Update xiaomi template keywords mapping to match actual template placeholders
- Add keyword search support for GetFollowers and GetFollowing endpoints
- Bind new config fields to environment variables for OPPO/Honor/vivo

internal/pkg/jpush/vendor/params.go

@@ -47,12 +47,24 @@ type MessageParams struct {
 	Extra map[string]any
 }
 
+// 消息分类常量（对应 JPush options.classification）
+const (
+	// ClassificationOperation 运营消息（0）：营销/公告类，受厂商限速
+	ClassificationOperation = 0
+	// ClassificationSystem 系统消息（1）：即时聊天/系统通知/互动通知，高优先级及时送达
+	// 注：聊天即时消息也归为系统消息，避免被厂商运营消息限速影响送达
+	ClassificationSystem = 1
+)
+
 // PushPayload 工厂统一产物，client 据此组装最终推送 payload
 type PushPayload struct {
 	// Notification 含 android + ios，由 TextRenderer 产出
 	Notification *jpush.Notification
 	// TPC 各厂商私有字段（options.third_party_channel），由 PrivateConverter 产出
 	TPC *jpush.ThirdPartyChannel
+	// Classification 消息分类（options.classification）：0=运营消息，1=系统消息
+	// 聊天和系统通知统一用 1，避免厂商运营消息限速
+	Classification int
 }
 
 // TextRenderer 通用文本渲染器（基础层）
@@ -124,7 +136,16 @@ func (f *Factory) Build(params MessageParams, cfg config.ChannelConfig) *PushPay
 	}
 
 	return &PushPayload{
-		Notification: notification,
-		TPC:          tpc.Normalize(),
+		Notification:   notification,
+		TPC:            tpc.Normalize(),
+		Classification: resolveClassification(params.Scene),
 	}
 }
+
+// resolveClassification 根据场景映射 JPush options.classification
+// 聊天即时消息与系统通知统一归为系统消息（1），避免厂商运营消息限速影响送达
+// 未来若引入营销/公告推送可扩展为运营消息（0）
+func resolveClassification(scene string) int {
+	// system 与 chat 场景均使用系统消息分类
+	return ClassificationSystem
+}