feat(acp): supervisor skeleton + AcpConfig wiring

internal/config/config.go

@@ -41,6 +41,7 @@ type Config struct {
 	Storage   Storage         `mapstructure:"storage"`
 	Jobs      JobsConfig      `mapstructure:"jobs"`
 	Notify    NotifyConfig    `mapstructure:"notify"`
+	Acp       AcpConfig       `mapstructure:"acp"`
 }
 
 // HTTPConfig 描述 HTTP 服务监听参数。
@@ -165,6 +166,24 @@ type WebhookCfg struct {
 	Topics  []string      `mapstructure:"topics"`
 }
 
+// AcpConfig 控制 ACP 模块的并发限流、子进程超时、WS 心跳与事件保留。
+type AcpConfig struct {
+	Enabled            bool          `mapstructure:"enabled"`
+	MaxActiveGlobal    int           `mapstructure:"max_active_global"`
+	MaxActivePerUser   int           `mapstructure:"max_active_per_user"`
+	SpawnTimeout       time.Duration `mapstructure:"spawn_timeout"`
+	KillGrace          time.Duration `mapstructure:"kill_grace"`
+	StderrBufferLines  int           `mapstructure:"stderr_buffer_lines"`
+	StderrTailBytes    int           `mapstructure:"stderr_tail_bytes"`
+	WSPingInterval     time.Duration `mapstructure:"ws_ping_interval"`
+	WSPongTimeout      time.Duration `mapstructure:"ws_pong_timeout"`
+	WSSendBuffer       int           `mapstructure:"ws_send_buffer"`
+	EventMaxPayload    int           `mapstructure:"event_max_payload_bytes"`
+	EventTruncateField int           `mapstructure:"event_truncate_field_bytes"`
+	EventRetentionDays int           `mapstructure:"event_retention_days"`
+	ShutdownGrace      time.Duration `mapstructure:"shutdown_grace"`
+}
+
 // Load 从（按优先级递增）默认值 → 配置文件（如有）→ 环境变量 加载配置。
 // configFile 可为空字符串，仅用环境变量。
 func Load(configFile string) (*Config, error) {
@@ -210,6 +229,20 @@ func Load(configFile string) (*Config, error) {
 	v.SetDefault("jobs.job_purge.completed_retention", "168h")
 	v.SetDefault("notify.webhook.enabled", false)
 	v.SetDefault("notify.webhook.timeout", "10s")
+	v.SetDefault("acp.enabled", true)
+	v.SetDefault("acp.max_active_global", 20)
+	v.SetDefault("acp.max_active_per_user", 3)
+	v.SetDefault("acp.spawn_timeout", "30s")
+	v.SetDefault("acp.kill_grace", "5s")
+	v.SetDefault("acp.stderr_buffer_lines", 100)
+	v.SetDefault("acp.stderr_tail_bytes", 2000)
+	v.SetDefault("acp.ws_ping_interval", "30s")
+	v.SetDefault("acp.ws_pong_timeout", "60s")
+	v.SetDefault("acp.ws_send_buffer", 256)
+	v.SetDefault("acp.event_max_payload_bytes", 65536)
+	v.SetDefault("acp.event_truncate_field_bytes", 4096)
+	v.SetDefault("acp.event_retention_days", 7)
+	v.SetDefault("acp.shutdown_grace", "30s")
 
 	if configFile != "" {
 		v.SetConfigFile(configFile)