node-engine seat: a node's windows, busy, strays and filters are lists, as the engine writes them (the contract said objects and refused every real value; ADR 0634; issue 1966)

Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i

go/seats/nodeengine/contract.go

@@ -1288,7 +1288,7 @@ const (
 
 // HaveByNodeNodeValue is one value of the state have under the key <node>.node.
 type HaveByNodeNodeValue struct {
-	Busy map[string]any `json:"busy,omitempty"`
+	Busy []map[string]any `json:"busy,omitempty"`
 	// the node's answer to each placement candidate naming it, by proposal id
 	Candidates map[string]CandidateAnswer `json:"candidates,omitempty"`
 	// the digest of the node's own composition it runs
@@ -1296,14 +1296,14 @@ type HaveByNodeNodeValue struct {
 	// own, or none (empty)
 	Composes    string            `json:"composes,omitempty"`
 	ComposesWhy string            `json:"composes-why,omitempty"`
-	Filters     map[string]any    `json:"filters,omitempty"`
+	Filters     []map[string]any  `json:"filters,omitempty"`
 	Profile     map[string]any    `json:"profile,omitempty"`
 	Record      *NodeRecord       `json:"record,omitempty"`
 	Sealed      []string          `json:"sealed,omitempty"`
 	SealedAt    map[string]string `json:"sealed-at,omitempty"`
-	Strays      map[string]any    `json:"strays,omitempty"`
+	Strays      []map[string]any  `json:"strays,omitempty"`
 	V           int64             `json:"v"`
-	Windows     map[string]any    `json:"windows,omitempty"`
+	Windows     []map[string]any  `json:"windows,omitempty"`
 }
 
 // ComposedByNodeModuleFingerprintValue is one value of the state composed under the key <node>.<module>.<fingerprint>.