feat(app): wire acp_events_purge runner into jobs scheduler

internal/config/config.go

@@ -120,6 +120,7 @@ type JobsConfig struct {
 	AttachmentCleanup AttachmentCleanupCfg `mapstructure:"attachment_cleanup"`
 	JobReaper         JobReaperCfg         `mapstructure:"job_reaper"`
 	JobPurge          JobPurgeCfg          `mapstructure:"job_purge"`
+	AcpEventsPurge    AcpEventsPurgeCfg    `mapstructure:"acp_events_purge"`
 }
 
 type RunnerCfg struct {
@@ -152,6 +153,12 @@ type JobPurgeCfg struct {
 	CompletedRetention time.Duration `mapstructure:"completed_retention"`
 }
 
+type AcpEventsPurgeCfg struct {
+	Enabled   bool          `mapstructure:"enabled"`
+	Interval  time.Duration `mapstructure:"interval"`
+	Retention time.Duration `mapstructure:"retention"`
+}
+
 // NotifyConfig 是 notify 模块的可选外发通道配置。当前仅 webhook。
 type NotifyConfig struct {
 	Webhook WebhookCfg `mapstructure:"webhook"`
@@ -227,6 +234,9 @@ func Load(configFile string) (*Config, error) {
 	v.SetDefault("jobs.job_purge.enabled", true)
 	v.SetDefault("jobs.job_purge.interval", "24h")
 	v.SetDefault("jobs.job_purge.completed_retention", "168h")
+	v.SetDefault("jobs.acp_events_purge.enabled", true)
+	v.SetDefault("jobs.acp_events_purge.interval", "24h")
+	v.SetDefault("jobs.acp_events_purge.retention", "168h")
 	v.SetDefault("notify.webhook.enabled", false)
 	v.SetDefault("notify.webhook.timeout", "10s")
 	v.SetDefault("acp.enabled", true)