feat: expose effective runtime settings in metrics

internal/observability/runtime.go

@@ -10,6 +10,26 @@ import (
 	"git.yuntuo.hk/k2safe/orbit/internal/buildinfo"
 )
 
+// RuntimeConfig 是节点启动后实际生效的后台控制参数。
+// 它只用于固定基数观测，不参与业务授权或持久化状态判断。
+type RuntimeConfig struct {
+	WorkflowTickInterval time.Duration
+	ScheduleTickInterval time.Duration
+	RecoveryTickInterval time.Duration
+	BatchLimit           int
+}
+
+// RecordRuntimeConfig records the effective bounded controller settings.
+func (r *Registry) RecordRuntimeConfig(config RuntimeConfig) {
+	if r == nil || config.WorkflowTickInterval <= 0 || config.ScheduleTickInterval <= 0 || config.RecoveryTickInterval <= 0 || config.BatchLimit <= 0 {
+		return
+	}
+	r.SetGauge("orbit_runtime_tick_interval_seconds", config.WorkflowTickInterval.Seconds(), Labels{"component": "workflow"})
+	r.SetGauge("orbit_runtime_tick_interval_seconds", config.ScheduleTickInterval.Seconds(), Labels{"component": "schedule"})
+	r.SetGauge("orbit_runtime_tick_interval_seconds", config.RecoveryTickInterval.Seconds(), Labels{"component": "execution_recovery"})
+	r.SetGauge("orbit_runtime_batch_limit", float64(config.BatchLimit), nil)
+}
+
 // initializeProcess is called once by the registry constructor.
 func (r *Registry) initializeProcess() {
 	if r == nil {