// Package memoryidentity keeps Viking uploads and native recall in one namespace.
package memoryidentity

import (
	"crypto/sha256"
	"encoding/hex"
)

const AssistantID = "platform_companion_v1"

func UserID(tenant, subject string) string {
	digest := sha256.Sum256([]byte(tenant + ":" + subject))
	return "u_" + hex.EncodeToString(digest[:])
}