[Feat] NavigationPath 사용 화면 전환 구현

JLPTVoca/JLPTVoca/ContentView.swift

@@ -25,9 +25,9 @@ struct ContentView: View {
                     Label("사전", systemImage: "book.fill")
                 }
 
-            DictionaryView()
+            SettingView()
                 .tabItem {
-                    Label("전체 사전", systemImage: "book.fill")
+                    Label("설정", systemImage: "gearshape.fill")
                 }
         }
         .environment(wordManager)

JLPTVoca/JLPTVoca/Managers/WordManager.swift

@@ -39,7 +39,7 @@ final class WordManager {
         if direction == .left {
             swipedWord.maturityState += 1
         } else {
-            swipedWord.maturityState = 1
+            swipedWord.maturityState = 2
         }
 
         wordDeck.removeAll { $0.id == id }

JLPTVoca/JLPTVoca/Navigation/AppRoute.swift

@@ -0,0 +1,19 @@
+
+//
+//  AppRoute.swift
+//  JLPTVoca
+//
+//  Created by Rama on 8/31/25.
+//
+
+import Foundation
+
+enum HomeRoute: Hashable {
+    case wordStudy
+}
+
+enum DictionaryRoute: Hashable {
+    case entireWords
+    case favoriteWords
+}
+

JLPTVoca/JLPTVoca/Navigation/NavigationManager.swift

@@ -0,0 +1,25 @@
+//
+//  NavigationManager.swift
+//  JLPTVoca
+//
+//  Created by Rama on 8/31/25.
+//
+
+import SwiftUI
+
+@Observable
+final class NavigationManager<Route: Hashable> {
+    var path = NavigationPath()
+
+    func navigate(_ route: Route) {
+        path.append(route)
+    }
+
+    func pop() {
+        path.removeLast()
+    }
+
+    func popToRoot() {
+        path.removeLast(path.count)
+    }
+}

JLPTVoca/JLPTVoca/Views/HomeView.swift

@@ -9,22 +9,14 @@ import SwiftUI
 
 struct HomeView: View {
     @Environment(WordManager.self) private var wordManager
-
-    @State private var isStudyViewActive = false
+    @State private var router = NavigationManager<HomeRoute>()
 
     var body: some View {
-        NavigationStack {
+        NavigationStack(path: $router.path) {
             VStack(spacing: 20) {
-                NavigationLink(
-                    destination: WordStudyView(),
-                    isActive: $isStudyViewActive
-                ) {
-                    EmptyView()
-                }
-
                 Button(action: {
                     wordManager.prepareSession()
-                    isStudyViewActive = true
+                    router.navigate(.wordStudy)
                 }) {
                     Text("단어 학습 시작")
                         .font(.title2)
@@ -35,8 +27,15 @@ struct HomeView: View {
                         .cornerRadius(10)
                 }
             }
-            .navigationTitle("홈")
+            .navigationTitle("JLPT-VOCA")
+            .navigationDestination(for: HomeRoute.self) { route in
+                switch route {
+                case .wordStudy:
+                    WordStudyView()
+                }
+            }
         }
+        .environment(router)
     }
 }