Add shared memory protocol for cross-agent context

Review Brief

Defines a normalized memory handoff payload so ADT apps can pass durable context without copying identity fields.

Support

3 / 5

Against

1

Comments

4

Package Payload

{
  "targetProduct": "agentsidentify",
  "domainId": "profile-extension",
  "specVersion": "v1",
  "nextStep": "agentsvote.createBallot"
}