refactor(util): move response helper to common/response and session logic to oauth

- Relocated generic HTTP response helpers (Response, OK, Err, etc.) from internal/util/ to a dedicated internal/common/response/ package.
- Renamed ResponseAny to Any to resolve revive stuttering warnings.
- Moved session building options and cookie headers logic from internal/util/ to internal/apps/oauth/.
- Removed all direct imports of Gin/Sessions/HTTP frameworks from internal/util/ to keep general utilities 100% pure.
- Regenerated Swagger API documentation via make swagger.
- All tests and make code-check compile and pass with 0 issues.

internal/router/router.go

@@ -33,7 +33,6 @@ import (
 	"github.com/Rain-kl/Wavelet/internal/apps/upload"
 	"github.com/Rain-kl/Wavelet/internal/apps/user"
 	"github.com/Rain-kl/Wavelet/internal/model"
-	"github.com/Rain-kl/Wavelet/internal/util"
 	capUtil "github.com/Rain-kl/Wavelet/internal/service/cap"
 
 	// Swagger 文档生成
@@ -98,7 +97,7 @@ func Serve() {
 		}
 	}
 
-	sessionStore.Options(util.GetSessionOptions(config.Config.App.SessionAge))
+	sessionStore.Options(oauth.GetSessionOptions(config.Config.App.SessionAge))
 
 	r.Use(sessions.Sessions(config.Config.App.SessionCookieName, sessionStore))