fix: resolve merge conflicts with upstream/main

- Fix imports in main.go (add runtime, filepath, encoding/json, etc.)
- Fix CreateProvider calls to handle 3 return values
- Add missing packages: tools, channels
- Ensure swarm mode commands compile correctly

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pkg/config/config.go

@@ -86,7 +86,6 @@ func (c Config) MarshalJSON() ([]byte, error) {
 	}
 
 	return json.Marshal(aux)
->>>>>>> upstream/main
 }
 
 type AgentsConfig struct {
@@ -587,146 +586,6 @@ func (c *SwarmConfig) Validate() error {
 	return nil
 }
 
-func DefaultConfig() *Config {
-	return &Config{
-		Agents: AgentsConfig{
-			Defaults: AgentDefaults{
-				Workspace:           "~/.picoclaw/workspace",
-				RestrictToWorkspace: true,
-				Provider:            "",
-				Model:               "glm-4.7",
-				MaxTokens:           8192,
-				Temperature:         0.7,
-				MaxToolIterations:   20,
-			},
-		},
-		Channels: ChannelsConfig{
-			WhatsApp: WhatsAppConfig{
-				Enabled:   false,
-				BridgeURL: "ws://localhost:3001",
-				AllowFrom: FlexibleStringSlice{},
-			},
-			Telegram: TelegramConfig{
-				Enabled:   false,
-				Token:     "",
-				AllowFrom: FlexibleStringSlice{},
-			},
-			Feishu: FeishuConfig{
-				Enabled:           false,
-				AppID:             "",
-				AppSecret:         "",
-				EncryptKey:        "",
-				VerificationToken: "",
-				AllowFrom:         FlexibleStringSlice{},
-			},
-			Discord: DiscordConfig{
-				Enabled:   false,
-				Token:     "",
-				AllowFrom: FlexibleStringSlice{},
-			},
-			MaixCam: MaixCamConfig{
-				Enabled:   false,
-				Host:      "0.0.0.0",
-				Port:      18790,
-				AllowFrom: FlexibleStringSlice{},
-			},
-			QQ: QQConfig{
-				Enabled:   false,
-				AppID:     "",
-				AppSecret: "",
-				AllowFrom: FlexibleStringSlice{},
-			},
-			DingTalk: DingTalkConfig{
-				Enabled:      false,
-				ClientID:     "",
-				ClientSecret: "",
-				AllowFrom:    FlexibleStringSlice{},
-			},
-			Slack: SlackConfig{
-				Enabled:   false,
-				BotToken:  "",
-				AppToken:  "",
-				AllowFrom: FlexibleStringSlice{},
-			},
-			LINE: LINEConfig{
-				Enabled:            false,
-				ChannelSecret:      "",
-				ChannelAccessToken: "",
-				WebhookHost:        "0.0.0.0",
-				WebhookPort:        18791,
-				WebhookPath:        "/webhook/line",
-				AllowFrom:          FlexibleStringSlice{},
-			},
-			OneBot: OneBotConfig{
-				Enabled:            false,
-				WSUrl:              "ws://127.0.0.1:3001",
-				AccessToken:        "",
-				ReconnectInterval:  5,
-				GroupTriggerPrefix: []string{},
-				AllowFrom:          FlexibleStringSlice{},
-			},
-		},
-		Providers: ProvidersConfig{
-			Anthropic:    ProviderConfig{},
-			OpenAI:       ProviderConfig{},
-			OpenRouter:   ProviderConfig{},
-			Groq:         ProviderConfig{},
-			Zhipu:        ProviderConfig{},
-			VLLM:         ProviderConfig{},
-			Gemini:       ProviderConfig{},
-			Nvidia:       ProviderConfig{},
-			Moonshot:     ProviderConfig{},
-			ShengSuanYun: ProviderConfig{},
-		},
-		Gateway: GatewayConfig{
-			Host: "0.0.0.0",
-			Port: 18790,
-		},
-		Tools: ToolsConfig{
-			Web: WebToolsConfig{
-				Brave: BraveConfig{
-					Enabled:    false,
-					APIKey:     "",
-					MaxResults: 5,
-				},
-				DuckDuckGo: DuckDuckGoConfig{
-					Enabled:    true,
-					MaxResults: 5,
-				},
-			},
-		},
-		Heartbeat: HeartbeatConfig{
-			Enabled:  true,
-			Interval: 30, // default 30 minutes
-		},
-		Devices: DevicesConfig{
-			Enabled:    false,
-			MonitorUSB: true,
-		},
-		Swarm: SwarmConfig{
-			Enabled:       false, // Disabled by default for backward compatibility
-			NodeID:        "",    // Auto-generate if empty
-			Role:          "worker",
-			Capabilities:  []string{},
-			MaxConcurrent: 5,
-			NATS: NATSConfig{
-				URLs:              []string{"nats://localhost:4222"},
-				Credentials:       "",
-				HeartbeatInterval: "10s",
-				NodeTimeout:       "30s",
-				Embedded:          false,
-				EmbeddedPort:      4222,
-			},
-			Temporal: TemporalConfig{
-				Host:            "localhost:7233",
-				Namespace:       "picoclaw-swarm",
-				TaskQueue:       "picoclaw-tasks",
-				WorkflowTimeout: "30m",
-				ActivityTimeout: "10m",
-			},
-		},
-	}
-}
 
 func LoadConfig(path string) (*Config, error) {
 	cfg := DefaultConfig()