feat: MeetDetail UI 리디자인 + 공지 Flow 진입점 연결

Modules/Data/Sources/Network/Response/Meet/MeetResponse.swift

@@ -10,24 +10,28 @@ import Domain
 
 struct MeetResponse: Decodable {
     let meetId: Int?
+    let version: Int?
     let meetName: String?
     let meetImage: String?
     let sinceDays: Int?
     let hostId: Int?
     let memberCount: Int?
     let lastPlanDay: String?
+    let pinnedNotice: NoticeResponse?
 }
 
 extension MeetResponse {
     func toDomain() -> Meet {
         let date = DateManager.parseServerFullDate(string: lastPlanDay)
-        
+
         return .init(meetSummary: .init(id: meetId,
                                         name: meetName,
                                         imagePath: meetImage),
                      sinceDays: sinceDays,
                      creatorId: hostId,
                      memberCount: memberCount,
-                     firstPlanDate: date)
+                     firstPlanDate: date,
+                     version: version,
+                     pinnedNotice: pinnedNotice?.toDomain())
     }
 }

Modules/Data/Sources/Network/Response/Notice/NoticeResponse.swift

@@ -0,0 +1,36 @@
+//
+//  NoticeResponse.swift
+//  Data
+//
+//  Created by CatSlave on 5/26/26.
+//
+//  서버 NoticeClientResponse — 공지 객체 단일 표현.
+//  MeetDetail 응답의 pinnedNotice 중첩 + 공지 리스트/상세 응답 모두 같은 구조.
+//
+
+import Foundation
+import Domain
+
+struct NoticeResponse: Decodable {
+    let noticeId: Int?
+    let version: Int?
+    let meetId: Int?
+    let type: String?
+    let content: String?
+    let pinned: Bool?
+    let createdAt: String?
+}
+
+extension NoticeResponse {
+    func toDomain() -> Notice {
+        return .init(
+            noticeId: noticeId,
+            version: version,
+            meetId: meetId,
+            type: NoticeType(rawValue: type ?? ""),
+            content: content,
+            isPinned: pinned ?? false,
+            createdAt: DateManager.parseServerFullDate(string: createdAt)
+        )
+    }
+}

Modules/Domain/Sources/Entities/Meet/Meet.swift

@@ -14,13 +14,24 @@ public struct Meet {
     public var creatorId: Int?
     public let memberCount: Int?
     public let firstPlanDate: Date?
+    public let version: Int?
+    public let pinnedNotice: Notice?
 
-    public init(isCreator: Bool = false, meetSummary: MeetSummary? = nil, sinceDays: Int? = nil, creatorId: Int? = nil, memberCount: Int? = nil, firstPlanDate: Date? = nil) {
+    public init(isCreator: Bool = false,
+                meetSummary: MeetSummary? = nil,
+                sinceDays: Int? = nil,
+                creatorId: Int? = nil,
+                memberCount: Int? = nil,
+                firstPlanDate: Date? = nil,
+                version: Int? = nil,
+                pinnedNotice: Notice? = nil) {
         self.isCreator = isCreator
         self.meetSummary = meetSummary
         self.sinceDays = sinceDays
         self.creatorId = creatorId
         self.memberCount = memberCount
         self.firstPlanDate = firstPlanDate
+        self.version = version
+        self.pinnedNotice = pinnedNotice
     }
 }

Modules/Domain/Sources/Entities/Notice/Notice.swift

@@ -0,0 +1,36 @@
+//
+//  Notice.swift
+//  Domain
+//
+//  Created by CatSlave on 5/26/26.
+//
+
+import Foundation
+
+// 모임 공지. MeetDetail 응답의 pinnedNotice, Notice 리스트 응답의 셀, 공지 상세 모두 같은 구조.
+// isPinned 플래그로 고정 여부 표현.
+public struct Notice: Hashable {
+    public let noticeId: Int?
+    public let version: Int?
+    public let meetId: Int?
+    public let type: NoticeType?
+    public let content: String?
+    public let isPinned: Bool
+    public let createdAt: Date?
+
+    public init(noticeId: Int? = nil,
+                version: Int? = nil,
+                meetId: Int? = nil,
+                type: NoticeType? = nil,
+                content: String? = nil,
+                isPinned: Bool = false,
+                createdAt: Date? = nil) {
+        self.noticeId = noticeId
+        self.version = version
+        self.meetId = meetId
+        self.type = type
+        self.content = content
+        self.isPinned = isPinned
+        self.createdAt = createdAt
+    }
+}

Modules/Domain/Sources/Entities/Notice/NoticeType.swift

@@ -0,0 +1,14 @@
+//
+//  NoticeType.swift
+//  Domain
+//
+//  Created by CatSlave on 5/26/26.
+//
+
+import Foundation
+
+// 모임 공지 분류 — 모임장이 작성한 사용자 공지(custom)와 시스템이 자동 발행한 공지(system) 두 가지
+public enum NoticeType: String, Sendable {
+    case custom = "CUSTOM"
+    case system = "SYSTEM"
+}

Modules/Domain/Sources/Interfaces/Repositories/Notice/NoticeRepo.swift

@@ -0,0 +1,44 @@
+//
+//  NoticeRepo.swift
+//  Domain
+//
+//  Created by CatSlave on 5/26/26.
+//
+//  모임 공지(Notice) + 공지 댓글 API 추상화.
+//  - 공지 CRUD/고정 토글: /notice/*
+//  - 공지 댓글 조회/생성: /comment/notice/{noticeId}
+//  - 공지 댓글 수정/삭제: 일반 CommentRepo.editComment / deleteComment 재사용 (URL 공통)
+//
+
+import Foundation
+
+public protocol NoticeRepo {
+
+    // MARK: - 공지 CRUD
+    func fetchNoticeList(meetId: Int,
+                         size: Int?,
+                         cursor: String?) async throws -> Page<Notice>
+
+    func createNotice(meetId: Int, content: String) async throws -> Notice
+
+    func updateNotice(noticeId: Int,
+                      meetId: Int,
+                      content: String) async throws -> Notice
+
+    func deleteNotice(noticeId: Int) async throws
+
+    // MARK: - 고정 토글
+    func pinNotice(noticeId: Int) async throws -> Notice
+    func unpinNotice(noticeId: Int) async throws -> Notice
+
+    // MARK: - 공지 댓글
+    // 게시글 댓글과 별도 endpoint이지만 응답 구조는 동일(Comment)이라 같은 entity로 매핑.
+    // 댓글 수정/삭제는 CommentRepo의 editComment / deleteComment 재사용.
+    func fetchNoticeCommentList(noticeId: Int,
+                                size: Int?,
+                                cursor: String?) async throws -> Page<Comment>
+
+    func createNoticeComment(noticeId: Int,
+                             content: String,
+                             mentions: [Int]) async throws -> Comment
+}

Modules/Domain/Sources/UseCases/Meet/Read/FetchMeetDetail.swift

@@ -31,13 +31,27 @@ public final class MockFetchMeetDetailUseCase: FetchMeetDetail {
     public func execute(meetId: Int) async throws -> Meet {
         print("✅ [Mock] 모임 상세 조회 - meetId: \(meetId)")
 
+        // meetId 짝수: 공지 있음 / 홀수: 공지 없음 → 모임장 작성 유도 툴팁 노출 케이스 둘 다 확인 가능
+        let hasNotice = meetId % 2 == 0
+        let mockPinnedNotice: Notice? = hasNotice ? Notice(
+            noticeId: 1,
+            version: 1,
+            meetId: meetId,
+            type: .custom,
+            content: "11/28일 모임 18:00 → 20:00 변경 되었습니다. 날씨이슈로 인해서",
+            isPinned: true,
+            createdAt: Date()
+        ) : nil
+
         let mockMeet = Meet(
             isCreator: true,
             meetSummary: MeetSummary(id: meetId, name: "테니스 동호회"),
             sinceDays: 120,
             creatorId: 1,
             memberCount: 8,
-            firstPlanDate: Calendar.current.date(byAdding: .day, value: 3, to: Date())
+            firstPlanDate: Calendar.current.date(byAdding: .day, value: 3, to: Date()),
+            version: 1,
+            pinnedNotice: mockPinnedNotice
         )
 
         try await Task.sleep(nanoseconds: 1_000_000_000)

Mople/Application/DIContainer/MainSceneDI/Sub/MeetDetailSceneDIContainer.swift

@@ -27,9 +27,11 @@ protocol MeetDetailSceneDependencies {
     // MARK: - Flow
     func makePlanCreateFlowCoordinator(meet: MeetSummary,
                                        completion: ((Plan) -> Void)?) -> BaseCoordinator
-    
+
     func makePostDetailFlowCoordinator(postId: Int,
                                        type: PostType) -> BaseCoordinator
+
+    func makeNoticeFlowCoordinator(entry: NoticeFlowEntry) -> BaseCoordinator
 }
 
 final class MeetDetailSceneDIContainer: BaseContainer, MeetDetailSceneDependencies {
@@ -261,4 +263,13 @@ extension MeetDetailSceneDIContainer {
                                                       postId: postId)
         return planDetailDI.makePostDetailCoordinator()
     }
+
+    // MARK: - 공지
+    func makeNoticeFlowCoordinator(entry: NoticeFlowEntry) -> BaseCoordinator {
+        let noticeDI = NoticeSceneDIContainer(appNetworkService: appNetworkService,
+                                              commonFactory: commonViewFactory,
+                                              userSession: userSession,
+                                              entry: entry)
+        return noticeDI.makeNoticeFlowCoordinator()
+    }
 }

Mople/Application/DIContainer/MainSceneDI/Sub/NoticeSceneDIContainer.swift

@@ -0,0 +1,70 @@
+//
+//  NoticeSceneDIContainer.swift
+//  Mople
+//
+//  Created by CatSlave on 5/26/26.
+//
+
+import UIKit
+import SwiftUI
+import Domain
+import Data
+
+protocol NoticeSceneDependencies {
+    func makeNoticeListViewController(meetId: Int,
+                                      isCreator: Bool,
+                                      coordinator: NoticeFlowCoordination) -> UIViewController
+    func makeNoticeDetailViewController(noticeId: Int) -> UIViewController
+    func makeNoticeComposeViewController(meetId: Int) -> UIViewController
+}
+
+final class NoticeSceneDIContainer: BaseContainer, NoticeSceneDependencies {
+
+    private let entry: NoticeFlowEntry
+
+    init(appNetworkService: AppNetworkService,
+         commonFactory: ViewDependencies,
+         userSession: UserSessionProvider,
+         entry: NoticeFlowEntry) {
+        self.entry = entry
+        super.init(appNetworkService: appNetworkService,
+                   commonFactory: commonFactory,
+                   userSession: userSession)
+    }
+
+    func makeNoticeFlowCoordinator() -> NoticeFlowCoordinator {
+        return .init(dependencies: self,
+                     entry: entry,
+                     navigationController: AppNaviViewController())
+    }
+}
+
+// MARK: - View Factories (SwiftUI + UIHostingController)
+extension NoticeSceneDIContainer {
+
+    @MainActor
+    func makeNoticeListViewController(meetId: Int,
+                                      isCreator: Bool,
+                                      coordinator: NoticeFlowCoordination) -> UIViewController {
+        let view = NoticeListView(
+            meetId: meetId,
+            isCreator: isCreator,
+            onComposeTap: { [weak coordinator] in
+                coordinator?.pushComposeView()
+            }
+        )
+        return UIHostingController(rootView: view)
+    }
+
+    @MainActor
+    func makeNoticeDetailViewController(noticeId: Int) -> UIViewController {
+        let view = NoticeDetailView(noticeId: noticeId)
+        return UIHostingController(rootView: view)
+    }
+
+    @MainActor
+    func makeNoticeComposeViewController(meetId: Int) -> UIViewController {
+        let view = NoticeComposeView(meetId: meetId)
+        return UIHostingController(rootView: view)
+    }
+}

Mople/Infrastructure/ScreenTrack/ScreenName.swift

@@ -43,6 +43,11 @@ enum ScreenName: String {
     case notification
     case notification_setting
 
+    // MARK: - Notice (모임 공지)
+    case notice_list
+    case notice_detail
+    case notice_compose
+
     // MARK: - Member
     case participant_list
 

Mople/Presentation/MainScene/Sub/MeetDetail/MeetDetailFlowCoordinator.swift

@@ -23,6 +23,8 @@ protocol MeetDetailCoordination: AnyObject {
     func presentPlanDetailView(postId: Int,
                                type: PostType)
     func pushMemberListView()
+    func presentNoticeListView(meetId: Int, isCreator: Bool)
+    func presentNoticeDetailView(noticeId: Int)
     func endFlow()
 }
 
@@ -51,6 +53,11 @@ final class MeetDetailSceneCoordinator: BaseCoordinator, MeetDetailCoordination
         reviewListVC = dependencies.makeMeetReviewListViewController()
         detailMeetVC?.pageController.setViewControllers([planListVC!], direction: .forward, animated: false)
         detailMeetVC?.configureEdgeGesture()
+
+        // sticky 헤더 — 자식 스크롤을 부모로 전달
+        if let plan = planListVC, let review = reviewListVC {
+            detailMeetVC?.attachChildScrollObservers(plan, review)
+        }
     }
 }
 
@@ -144,6 +151,28 @@ extension MeetDetailSceneCoordinator {
     }
 }
 
+// MARK: - Notice Flow
+extension MeetDetailSceneCoordinator {
+
+    // 확성기 버튼 → 공지 리스트 (modal present)
+    func presentNoticeListView(meetId: Int, isCreator: Bool) {
+        let coordinator = dependencies.makeNoticeFlowCoordinator(
+            entry: .list(meetId: meetId, isCreator: isCreator)
+        )
+        start(coordinator: coordinator)
+        self.present(coordinator.navigationController)
+    }
+
+    // 공지 미리보기 카드 → 공지 상세 (modal present)
+    func presentNoticeDetailView(noticeId: Int) {
+        let coordinator = dependencies.makeNoticeFlowCoordinator(
+            entry: .detail(noticeId: noticeId)
+        )
+        start(coordinator: coordinator)
+        self.present(coordinator.navigationController)
+    }
+}
+
 // MARK: - End Flow
 extension MeetDetailSceneCoordinator {
     func endFlow() {