feat(fleetnode): route firmware updates through fleet nodes

proto/fleetnodegateway/v1/fleetnodegateway.proto

@@ -330,6 +330,8 @@ message MinerCommand {
         GetErrorsAction get_errors = 12;
         UpdateMinerPasswordAction update_miner_password = 13;
         DownloadLogsAction download_logs = 14;
+        FirmwareUpdateAction firmware_update = 15;
+        GetFirmwareUpdateStatusAction get_firmware_update_status = 16;
     }
 }
 
@@ -340,6 +342,7 @@ message BlinkLedAction {}
 message UncurtailAction {}
 message GetMiningPoolsAction {}
 message GetErrorsAction {}
+message GetFirmwareUpdateStatusAction {}
 
 message DownloadLogsAction {
     string batch_log_uuid = 1 [(buf.validate.field).string = {min_len: 1, max_len: 128}];
@@ -367,6 +370,10 @@ message UpdateMinerPasswordResult {
     EncryptedCredentials encrypted_credentials = 1 [(buf.validate.field).required = true];
 }
 
+message FirmwareUpdateAction {
+    CommandArtifactRef artifact = 1 [(buf.validate.field).required = true];
+}
+
 message CurtailAction {
     curtailment.v1.CurtailmentLevel level = 1;
 }
@@ -399,6 +406,12 @@ message GetMiningPoolsResult {
     repeated MiningPoolConfig pools = 1 [(buf.validate.field).repeated.max_items = 3];
 }
 
+message FirmwareUpdateStatusResult {
+    string state = 1 [(buf.validate.field).string.max_len = 64];
+    optional int32 progress = 2;
+    optional string error = 3 [(buf.validate.field).string.max_len = 4096];
+}
+
 message MinerErrorReport {
     errors.v1.MinerError miner_error = 1 [(buf.validate.field).enum.defined_only = true];
     string cause_summary = 2 [(buf.validate.field).string.max_len = 4096];