fix: --orchestration flag not applied in gateway command

cmd_gateway.go parsed --debug and --stats but not --orchestration,
so cfg.Agents.Defaults.Orchestration was never set to true.
As a result GetOrchBroadcaster() returned nil, SetOrchBroadcaster()
was never called, and the /miniapp/api/orchestration/ws endpoint
always returned 503 → "Disconnected" in the Orch tab.

Also restored loop.go comment to clarify that instance.go already
maps defaults.Orchestration → Subagents.Enabled before the loop runs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cmd/picoclaw/cmd_gateway.go

@@ -37,6 +37,7 @@ func gatewayCmd() {
 	// Check for --debug and --stats flags
 	args := os.Args[2:]
 	enableStats := false
+	orchestrationEnabled := false
 	for _, arg := range args {
 		if arg == "--debug" || arg == "-d" {
 			logger.SetLevel(logger.DEBUG)
@@ -45,6 +46,9 @@ func gatewayCmd() {
 		if arg == "--stats" {
 			enableStats = true
 		}
+		if arg == "--orchestration" {
+			orchestrationEnabled = true
+		}
 	}
 
 	cfg, err := loadConfig()
@@ -58,6 +62,10 @@ func gatewayCmd() {
 		fmt.Printf("Error creating provider: %v\n", err)
 		os.Exit(1)
 	}
+	if orchestrationEnabled {
+		cfg.Agents.Defaults.Orchestration = true
+	}
+
 	// Use the resolved model ID from provider creation
 	if modelID != "" {
 		cfg.Agents.Defaults.Model = modelID

pkg/agent/loop.go

@@ -137,6 +137,8 @@ func NewAgentLoop(cfg *config.Config, msgBus *bus.MessageBus, provider providers
 	}
 
 	// Determine if orchestration broadcaster is needed (any agent has subagents enabled).
+	// Note: instance.go maps defaults.Orchestration → Subagents.Enabled, so --orchestration
+	// is automatically reflected here.
 	var orchBroadcaster *orch.Broadcaster
 	var orchReporter orch.AgentReporter = orch.Noop
 	for _, id := range registry.ListAgentIDs() {