feat(project): 프로젝트 생성 화면과 저장 흐름 추가

app/src/main/java/com/example/it_da/navigation/AppNavigation.kt

@@ -7,6 +7,7 @@ import androidx.navigation.compose.rememberNavController
 import com.example.it_da.ui.screen.home.HomeRoute
 import com.example.it_da.ui.screen.login.LoginLaunchRoute
 import com.example.it_da.ui.screen.login.LoginRoute
+import com.example.it_da.ui.screen.projectcreate.route.ProjectCreateRoute
 import com.example.it_da.ui.screen.signup.route.SignUpAccountRoute
 import com.example.it_da.ui.screen.signup.route.SignUpAdditionalInfoRoute
 
@@ -38,6 +39,11 @@ fun AppNavigation() {
             launchSingleTop = true
         }
     }
+    val navigateProjectCreate: () -> Unit = {
+        navController.navigate(ProjectCreateDestination) {
+            launchSingleTop = true
+        }
+    }
     NavHost(
         navController = navController,
         startDestination = LoginLaunchDestination
@@ -82,7 +88,23 @@ fun AppNavigation() {
         }
 
         composable<HomeDestination> {
-            HomeRoute()
+            HomeRoute(
+                onCreateProjectClick = navigateProjectCreate
+            )
+        }
+
+        composable<ProjectCreateDestination> {
+            ProjectCreateRoute(
+                onBackClick = {
+                    navController.popBackStack()
+                },
+                onSubmitSuccess = navigateHome,
+                onHomeTabClick = navigateHome,
+                onExploreTabClick = {},
+                onCreateProjectClick = navigateProjectCreate,
+                onNotificationTabClick = {},
+                onProfileTabClick = {}
+            )
         }
     }
 }

app/src/main/java/com/example/it_da/navigation/AppRoute.kt

@@ -17,3 +17,6 @@ data object SignUpAdditionalInfoDestination
 
 @Serializable
 data object HomeDestination
+
+@Serializable
+data object ProjectCreateDestination

app/src/main/java/com/example/it_da/ui/screen/projectcreate/ProjectCreateUiStateMapper.kt

@@ -0,0 +1,20 @@
+package com.example.it_da.ui.screen.projectcreate
+
+import com.example.it_da.domain.model.ProjectCreateProject
+import com.example.it_da.ui.screen.projectcreate.state.ProjectCreateUiState
+
+// Converts form UI state into the app-level project model used by the repository.
+fun ProjectCreateUiState.toProjectCreateProject(): ProjectCreateProject {
+    return ProjectCreateProject(
+        projectName = projectName,
+        category = category,
+        period = period,
+        method = method,
+        introduction = introduction,
+        goal = goal,
+        memberCount = memberCount,
+        role = role,
+        techStack = techStack,
+        deadline = deadline
+    )
+}

app/src/main/java/com/example/it_da/ui/screen/projectcreate/route/ProjectCreateRoute.kt

@@ -0,0 +1,52 @@
+package com.example.it_da.ui.screen.projectcreate.route
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
+import com.example.it_da.ui.screen.projectcreate.screen.ProjectCreateScreen
+import com.example.it_da.ui.screen.projectcreate.viewmodel.ProjectCreateViewModel
+
+// Connects project creation state, form events, and navigation callbacks to the screen.
+@Composable
+fun ProjectCreateRoute(
+    onBackClick: () -> Unit,
+    onSubmitSuccess: () -> Unit,
+    onHomeTabClick: () -> Unit,
+    onExploreTabClick: () -> Unit,
+    onCreateProjectClick: () -> Unit,
+    onNotificationTabClick: () -> Unit,
+    onProfileTabClick: () -> Unit,
+    viewModel: ProjectCreateViewModel = hiltViewModel()
+) {
+    val uiState by viewModel.uiState.collectAsState()
+
+    LaunchedEffect(uiState.isSubmitSuccess) {
+        if (uiState.isSubmitSuccess) {
+            onSubmitSuccess()
+        }
+    }
+
+    ProjectCreateScreen(
+        uiState = uiState,
+        onBackClick = onBackClick,
+        onProjectNameChange = viewModel::onProjectNameChange,
+        onCategoryChange = viewModel::onCategoryChange,
+        onPeriodChange = viewModel::onPeriodChange,
+        onMethodChange = viewModel::onMethodChange,
+        onIntroductionChange = viewModel::onIntroductionChange,
+        onGoalChange = viewModel::onGoalChange,
+        onMemberCountChange = viewModel::onMemberCountChange,
+        onRoleChange = viewModel::onRoleChange,
+        onTechStackChange = viewModel::onTechStackChange,
+        onDeadlineChange = viewModel::onDeadlineChange,
+        onDropdownArrowClick = {},
+        onSubmitClick = viewModel::submitProject,
+        onHomeTabClick = onHomeTabClick,
+        onExploreTabClick = onExploreTabClick,
+        onCreateProjectClick = onCreateProjectClick,
+        onNotificationTabClick = onNotificationTabClick,
+        onProfileTabClick = onProfileTabClick
+    )
+}