feat: Implement direct upload functionality for desktop client releases

- Added new endpoints for initiating and completing direct uploads of desktop client packages.
- Introduced request and response structures for direct upload operations.
- Enhanced the upload process to support SHA256 and Content-MD5 validation.
- Updated the frontend to reflect changes in upload button states and progress indicators.
- Modified object storage clients to support presigned PUT URLs with content type and MD5 headers.
- Added tests for direct upload functionality and ensured existing upload processes remain intact.

server/internal/ops/transport/desktop_client_release_handler.go

@@ -50,6 +50,30 @@ type desktopClientReleaseUploadInitRequest struct {
 	ChunkSizeBytes int64  `json:"chunk_size_bytes"`
 }
 
+type desktopClientReleaseDirectUploadInitRequest struct {
+	Platform      string `json:"platform" binding:"required"`
+	Arch          string `json:"arch"`
+	Channel       string `json:"channel"`
+	Version       string `json:"version" binding:"required"`
+	Kind          string `json:"kind"`
+	FileName      string `json:"file_name" binding:"required"`
+	FileSizeBytes int64  `json:"file_size_bytes" binding:"required"`
+	SHA256        string `json:"sha256" binding:"required"`
+	ContentMD5    string `json:"content_md5"`
+}
+
+type desktopClientReleaseDirectUploadCompleteRequest struct {
+	Platform      string `json:"platform" binding:"required"`
+	Arch          string `json:"arch"`
+	Channel       string `json:"channel"`
+	Version       string `json:"version" binding:"required"`
+	Kind          string `json:"kind"`
+	OSSObjectKey  string `json:"oss_object_key" binding:"required"`
+	FileName      string `json:"file_name" binding:"required"`
+	FileSizeBytes int64  `json:"file_size_bytes" binding:"required"`
+	SHA256        string `json:"sha256" binding:"required"`
+}
+
 func listDesktopClientReleasesHandler(svc *app.DesktopClientReleaseService) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
@@ -208,6 +232,58 @@ func uploadDesktopClientReleaseHandler(svc *app.DesktopClientReleaseService) gin
 	}
 }
 
+func initiateDesktopClientReleaseDirectUploadHandler(svc *app.DesktopClientReleaseService) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var body desktopClientReleaseDirectUploadInitRequest
+		if err := c.ShouldBindJSON(&body); err != nil {
+			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
+			return
+		}
+		result, err := svc.InitiateDirectUpload(c.Request.Context(), app.DesktopClientReleaseDirectUploadInitInput{
+			Platform:      body.Platform,
+			Arch:          body.Arch,
+			Channel:       body.Channel,
+			Version:       body.Version,
+			Kind:          body.Kind,
+			FileName:      body.FileName,
+			FileSizeBytes: body.FileSizeBytes,
+			SHA256:        body.SHA256,
+			ContentMD5:    body.ContentMD5,
+		})
+		if err != nil {
+			response.Error(c, err)
+			return
+		}
+		response.Success(c, result)
+	}
+}
+
+func completeDesktopClientReleaseDirectUploadHandler(svc *app.DesktopClientReleaseService) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var body desktopClientReleaseDirectUploadCompleteRequest
+		if err := c.ShouldBindJSON(&body); err != nil {
+			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
+			return
+		}
+		result, err := svc.CompleteDirectUpload(c.Request.Context(), app.DesktopClientReleaseDirectUploadCompleteInput{
+			Platform:      body.Platform,
+			Arch:          body.Arch,
+			Channel:       body.Channel,
+			Version:       body.Version,
+			Kind:          body.Kind,
+			OSSObjectKey:  body.OSSObjectKey,
+			FileName:      body.FileName,
+			FileSizeBytes: body.FileSizeBytes,
+			SHA256:        body.SHA256,
+		})
+		if err != nil {
+			response.Error(c, err)
+			return
+		}
+		response.Success(c, result)
+	}
+}
+
 func initiateDesktopClientReleaseUploadHandler(svc *app.DesktopClientReleaseService) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		var body desktopClientReleaseUploadInitRequest