Say a mark-only provider's retirement as mark only

A provider that cannot disable keeps the consumer reachable until a person
deletes it (hq ADR 0230); the listing and the approval say so instead of
claiming access was disabled.

internal/link/retirement.go

@@ -49,6 +49,9 @@ type RetiredConsumer struct {
 	SizeBytes *int64 `json:"size_bytes,omitempty"`
 	// Kind is "consumer", or a backend's own word for something set aside ("set-aside-database").
 	Kind string `json:"kind,omitempty"`
+	// Access is "disabled" when the provider disabled it, "kept" for a mark-only provider whose consumer
+	// keeps its access until a person deletes it (ADR 0230); absent is disabled.
+	Access string `json:"access,omitempty"`
 }
 
 // Retirement is one provider's word about consumers the mesh stopped asking for.
@@ -230,12 +233,16 @@ type RetirementRejected struct {
 
 // RetirementState is a provider's answer to provisioner_retirement.
 type RetirementState struct {
-	Resource     string              `json:"resource"`
-	Node         string              `json:"node"`
-	Held         []string            `json:"held"`
-	StablePasses int                 `json:"stable_passes"`
-	Bound        string              `json:"bound"`
-	Waiting      *RetirementWaiting  `json:"waiting"`
-	Rejected     *RetirementRejected `json:"rejected"`
-	Retired      []RetiredConsumer   `json:"retired"`
+	Resource     string   `json:"resource"`
+	Node         string   `json:"node"`
+	Held         []string `json:"held"`
+	StablePasses int      `json:"stable_passes"`
+	// StableForSeconds is how long the same unasked set must hold as well (ADR 0230: ten minutes).
+	StableForSeconds int `json:"stable_for_seconds,omitempty"`
+	// RetiresBy is "disable", or "mark-only" for a provider that cannot disable a consumer.
+	RetiresBy string              `json:"retires_by,omitempty"`
+	Bound     string              `json:"bound"`
+	Waiting   *RetirementWaiting  `json:"waiting"`
+	Rejected  *RetirementRejected `json:"rejected"`
+	Retired   []RetiredConsumer   `json:"retired"`
 }