feat: release v0.28 generic Go project scaffolding and lifecycle entry

examples/program/internal/config/config.go

@@ -0,0 +1,29 @@
+package config
+
+import (
+	omniConfig "git.yuntuo.hk/k2safe/go-omni/config"
+	"git.yuntuo.hk/k2safe/go-omni/lifecycle"
+	"git.yuntuo.hk/k2safe/go-omni/logx"
+)
+
+// Config, Default and Validate are project-owned. Add project settings here.
+type Config struct {
+	Once      bool                     `json:"once"`
+	Log       logx.Config              `json:"log"`
+	Lifecycle lifecycle.ShutdownConfig `json:"lifecycle"`
+}
+
+func Default() Config {
+	log := logx.Default()
+	log.Service = "example.com/program"
+	return Config{Once: true, Log: log, Lifecycle: lifecycle.DefaultShutdownConfig()}
+}
+func (c Config) Validate() error {
+	if err := c.Log.Validate(); err != nil {
+		return omniConfig.AtField("log", err)
+	}
+	if err := c.Lifecycle.Validate(); err != nil {
+		return omniConfig.AtField("lifecycle", err)
+	}
+	return nil
+}