Add/accountsync

common/proto/accounts/accounts.proto

@@ -63,6 +63,15 @@ message AccountNonceSyncRequest {
     checksum.Checksum checksum = 8; // optional: versioned digest (shared checksum.proto)
 }
 
+// AccountSyncRequestAccounts is a stateless targeted fetch request.
+// map<string, bool> gives set semantics at the wire level — duplicate addresses
+// are structurally impossible (map keys are unique in protobuf).
+// Used post-PoTS / post-Reconciliation when tagging identifies missing accounts.
+message AccountSyncRequestAccounts {
+    map<string, bool> addresses = 1; // key = address hex or DID string
+    phase.Phase       phase     = 2;
+}
+
 // ================================================================
 // Server-side stream envelope (server → client)
 // ================================================================

common/types/constants/constants.go

@@ -41,6 +41,10 @@ const (
 	ACCOUNTS_SYNC_REQUEST_END = "state:accountssync:accountssyncrequest:end"
 	ACCOUNTS_SYNC_REQUEST = "state:accountssync:accountssyncrequest"
 	ACCOUNTS_SYNC_RESPONSE = "state:accountssync:accountssyncresponse"
+
+	// Take the array of accounts required from the client as request, and send the array of accounts to the server.
+	ACCOUNTS_SYNC_REQUEST_ACCOUNTS = "state:accountssync:accountssyncrequest:accounts"
+	ACCOUNTS_SYNC_REQUEST_ACCOUNTS_RESPONSE = "state:accountssync:accountssyncrequest:accounts:response"
 )
 
 const (

common/types/constants/protocols.go

@@ -11,6 +11,7 @@ const (
 	DataSyncProtocol           protocol.ID = "/fastsync/v1/datasync"
 	AccountsSyncProtocol       protocol.ID = "/fastsync/v1/accountssync"
 	AccountsSyncDataProtocol   protocol.ID = "/fastsync/v1/accountssync/data"
+	AccountsSyncFetchProtocol  protocol.ID = "/fastsync/v1/accountssync/fetch"
 	PoTSProtocol               protocol.ID = "/fastsync/v1/pots"
 )