feat: add web gateway hot reload and polling state sync

cmd/picoclaw/internal/gateway/command.go

@@ -5,13 +5,16 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/sipeed/picoclaw/cmd/picoclaw/internal"
+	"github.com/sipeed/picoclaw/pkg/gateway"
 	"github.com/sipeed/picoclaw/pkg/logger"
 	"github.com/sipeed/picoclaw/pkg/utils"
 )
 
 func NewGatewayCommand() *cobra.Command {
 	var debug bool
 	var noTruncate bool
+	var allowEmpty bool
 
 	cmd := &cobra.Command{
 		Use:     "gateway",
@@ -31,12 +34,19 @@ func NewGatewayCommand() *cobra.Command {
 			return nil
 		},
 		RunE: func(_ *cobra.Command, _ []string) error {
-			return gatewayCmd(debug)
+			return gateway.Run(debug, internal.GetConfigPath(), allowEmpty)
 		},
 	}
 
 	cmd.Flags().BoolVarP(&debug, "debug", "d", false, "Enable debug logging")
 	cmd.Flags().BoolVarP(&noTruncate, "no-truncate", "T", false, "Disable string truncation in debug logs")
+	cmd.Flags().BoolVarP(
+		&allowEmpty,
+		"allow-empty",
+		"E",
+		false,
+		"Continue starting even when no default model is configured",
+	)
 
 	return cmd
 }

cmd/picoclaw/internal/gateway/command_test.go

@@ -28,4 +28,5 @@ func TestNewGatewayCommand(t *testing.T) {
 
 	assert.True(t, cmd.HasFlags())
 	assert.NotNil(t, cmd.Flags().Lookup("debug"))
+	assert.NotNil(t, cmd.Flags().Lookup("allow-empty"))
 }

config/config.example.json

@@ -518,6 +518,7 @@
   },
   "gateway": {
     "host": "127.0.0.1",
-    "port": 18790
+    "port": 18790,
+    "hot_reload": false
   }
 }

pkg/channels/manager.go

@@ -357,7 +357,6 @@ func (m *Manager) StartAll(ctx context.Context) error {
 
 	if len(m.channels) == 0 {
 		logger.WarnC("channels", "No channels enabled")
-		return errors.New("no channels enabled")
 	}
 
 	logger.InfoC("channels", "Starting all channels")

pkg/config/config.go

@@ -625,8 +625,9 @@ func (c *ModelConfig) Validate() error {
 }
 
 type GatewayConfig struct {
-	Host string `json:"host" env:"PICOCLAW_GATEWAY_HOST"`
-	Port int    `json:"port" env:"PICOCLAW_GATEWAY_PORT"`
+	Host      string `json:"host"       env:"PICOCLAW_GATEWAY_HOST"`
+	Port      int    `json:"port"       env:"PICOCLAW_GATEWAY_PORT"`
+	HotReload bool   `json:"hot_reload" env:"PICOCLAW_GATEWAY_HOT_RELOAD"`
 }
 
 type ToolDiscoveryConfig struct {

pkg/config/config_test.go

@@ -267,6 +267,9 @@ func TestDefaultConfig_Gateway(t *testing.T) {
 	if cfg.Gateway.Port == 0 {
 		t.Error("Gateway port should have default value")
 	}
+	if cfg.Gateway.HotReload {
+		t.Error("Gateway hot reload should be disabled by default")
+	}
 }
 
 // TestDefaultConfig_Providers verifies provider structure

pkg/config/defaults.go

@@ -395,8 +395,9 @@ func DefaultConfig() *Config {
 			},
 		},
 		Gateway: GatewayConfig{
-			Host: "127.0.0.1",
-			Port: 18790,
+			Host:      "127.0.0.1",
+			Port:      18790,
+			HotReload: false,
 		},
 		Tools: ToolsConfig{
 			MediaCleanup: MediaCleanupConfig{