feat: complete contract-driven business development and MySQL integration

examples/managedService/internal/svc/serviceContext.go

@@ -2,66 +2,25 @@ package svc
 
 import (
 	"context"
-	"errors"
-	"sync"
 
 	"example.com/managed/internal/config"
-	"example.com/managed/internal/middleware"
 	"git.yuntuo.hk/k2safe/go-omni/health"
 	"git.yuntuo.hk/k2safe/go-omni/httpx"
 	"git.yuntuo.hk/k2safe/go-omni/lifecycle"
 	"git.yuntuo.hk/k2safe/go-omni/logx"
 )
 
-// Context owns infrastructure, while Logger is borrowed from main.
-// Add business repositories here; HTTP contracts do not define database tables.
+// Context holds project dependencies. Runtime owns cleanup and shutdown.
+// Logger is borrowed; the generated entry closes it after dependencies.
 type ServiceContext struct {
-	Lifecycle   *lifecycle.Controller
+	*lifecycle.Runtime
 	Config      config.Config
-	cleanups    []func() error
 	Logger      *logx.Logger
 	Health      *health.Checker
 	Middlewares map[string]httpx.Middleware
-
-	closeMu   sync.Mutex
-	closed    bool
-	closeOnce sync.Once
-	closeErr  error
 }
 
-// Pass the settings loaded by main. The optional form supports lightweight
-// tests without infrastructure; selected adapters still require valid config.
-func New(ctx context.Context, logger *logx.Logger, configs ...config.Config) (result *ServiceContext, err error) {
-	if ctx == nil {
-		ctx = context.Background()
-	}
-	if err = ctx.Err(); err != nil {
-		return nil, errors.Join(err, lifecycle.Cause(ctx))
-	}
-	if len(configs) > 1 {
-		return nil, errors.New("expected at most one configuration")
-	}
-	cfg := config.Default()
-	if len(configs) == 1 {
-		cfg = configs[0]
-	}
-	_ = cfg
-	checker, err := health.New()
-	if err != nil {
-		return nil, err
-	}
-	c := &ServiceContext{Config: cfg, Logger: logger, Health: checker, Middlewares: middleware.Defaults(), Lifecycle: lifecycle.New(ctx)}
-	ctx = c.Lifecycle.Context()
-	defer func() {
-		if err != nil {
-			err = errors.Join(err, c.Close())
-			if cause := c.Lifecycle.Err(); cause != nil && !errors.Is(err, cause) {
-				err = errors.Join(err, cause)
-			}
-		}
-	}()
-
-	return c, nil
-}
-
-func (c *ServiceContext) RequestShutdown(err error) { c.Lifecycle.RequestShutdown(err) }
+// Init is project-owned. Add dependencies here and immediately register each
+// cleanup with c.OnClose. Returning an error automatically rolls everything back.
+// Generated infrastructure is ready here. Never create another App or logger.
+func (c *ServiceContext) Init(ctx context.Context) error { return nil }