新增项目、排期与邀请模块，并接入首页路由

将项目管理、排期管理与摄影师邀请流程从占位页迁移为完整实现，包含项目图片 OSS 上传与共享业务模型。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkanTests/Assets/AssetsViewModelTests.swift

@@ -546,6 +546,11 @@ private final class MockAssetsUploader: OSSUploadServing {
         try await upload(fileName: fileName, fileType: fileType, scenicId: scenicId, onProgress: onProgress)
     }
 
+    /// 上传项目图片。
+    func uploadProjectImage(data: Data, fileName: String, scenicId: Int, onProgress: @escaping (Int) -> Void) async throws -> String {
+        try await upload(fileName: fileName, fileType: 2, scenicId: scenicId, onProgress: onProgress)
+    }
+
     /// 上传打卡点图片。
     func uploadPunchPointImage(data: Data, fileName: String, scenicId: Int, onProgress: @escaping (Int) -> Void) async throws -> String {
         try await upload(fileName: fileName, fileType: 2, scenicId: scenicId, onProgress: onProgress)