refactor: transitioned auth controller to use the new controller structure;

feat: setup DI for controllers;
refactor: marked old utils and routes package parts as deprecated

backend/internal/controllers/setup.go

@@ -1,30 +1,72 @@
 // Copyright (c) 2025 Nikolai Papin
-// 
+//
 // This file is part of Easywish
-// 
+//
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
-// 
+//
 // This program is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 // the GNU General Public License for more details.
-// 
+//
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 package controllers
 
 import (
+	"easywish/internal/dto"
+	"easywish/internal/middleware"
+	"easywish/internal/services"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
 	"go.uber.org/fx"
+	"go.uber.org/zap"
 )
 
+type SetupControllersParams struct {
+	fx.In
+	Controllers []Controller `group:"controllers"`
+	Log         *zap.Logger
+	Auth        services.AuthService
+	Group       *gin.Engine
+}
+
+func setupControllers(p SetupControllersParams) {
+
+  apiGroup := p.Group.Group("/api")
+	apiGroup.Use(middleware.AuthMiddleware(p.Log, p.Auth))
+	apiGroup.Use(gin.HandlerFunc(func(c *gin.Context) {
+		ip := c.ClientIP()
+		userAgent := c.Request.UserAgent()
+		sessionInfoFromCtx, ok := c.Get("session_info"); if !ok {
+			c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "Invalid or missing session data"})
+			return
+		}
+
+		sessionInfo := sessionInfoFromCtx.(dto.SessionInfo)
+
+		c.Set("client_info", dto.ClientInfo{
+			SessionInfo: sessionInfo,
+			IP: ip,
+			UserAgent: userAgent,
+		})
+
+		c.Next()
+	}))
+	for _, ctrl := range p.Controllers {
+		ctrl.Setup(apiGroup, p.Log, p.Auth)
+	}
+}
+
 var Module = fx.Module("controllers",
     fx.Provide(
-			NewServiceController,
-			NewAuthController,
-			NewProfileController,
-    ),
+			fx.Annotate(NewAuthController, fx.ResultTags(`group:"controllers"`)),
+			fx.Annotate(NewServiceController, fx.ResultTags(`group:"controllers"`)),
+		),
+		fx.Invoke(setupControllers),
 )