feat: remove Gin and standardize on nethttp

app/app.go

@@ -15,7 +15,7 @@ import (
 	apierrors "git.yuntuo.hk/k2safe/go-omni/errors"
 	"git.yuntuo.hk/k2safe/go-omni/httpx"
 	"git.yuntuo.hk/k2safe/go-omni/middleware"
-	ginrouter "git.yuntuo.hk/k2safe/go-omni/transport/gin"
+	netrouter "git.yuntuo.hk/k2safe/go-omni/transport/nethttp"
 )
 
 // App is the top-level GoOmni application. Its public behavior depends on
@@ -29,10 +29,10 @@ type App struct {
 	closeErr    error
 }
 
-// New creates an application using the default Gin adapter.
+// New creates an application using GoOmni's standard-library router.
 func New(options ...config.Option) *App {
 	settings := configure(options...)
-	return newApp(ginrouter.New(settings.Mode), settings)
+	return newApp(netrouter.New(), settings)
 }
 
 // NewWithRouter creates an application with a custom network layer. A custom
@@ -68,7 +68,7 @@ func newApp(router httpx.Router, settings config.Config) *App {
 func (a *App) Router() httpx.Router { return a.router }
 
 // Engine is kept as a compatibility name for the old API. It returns a
-// standard http.Handler, so callers no longer need a Gin type.
+// standard http.Handler, so callers do not depend on a router type.
 func (a *App) Engine() http.Handler { return a.router }
 
 // ServeHTTP implements http.Handler for standard servers and HTTP tests.