Update .gitignore, adjust TED scraper configuration, and enhance Tender entity structure

- Added 'ted_samples/' to .gitignore to exclude TED sample files from version control.
- Updated the TED scraper configuration to extend the cleanup duration from 24 hours to 72 hours, allowing for better resource management.
- Enhanced the Tender entity by adding new fields: TenderDeadline, SubmissionDeadline, ApplicationDeadline, and SubmissionURL, improving the data model for tender management.
- Updated the TenderResponse structure to include the new fields, ensuring consistency in API responses.
- Implemented logic in the TED scraper to calculate submission and application deadlines based on tender deadlines, enhancing the scraping functionality.

internal/tender/form.go

@@ -31,7 +31,6 @@ type ListTendersResponse struct {
 type TenderResponse struct {
 	ID                  string                `json:"id"`
 	NoticePublicationID string                `json:"notice_publication_id"`
-	PublicationDate     int64                 `json:"publication_date"`
 	Title               string                `json:"title"`
 	Description         string                `json:"description"`
 	ProcurementTypeCode string                `json:"procurement_type_code"`
@@ -40,8 +39,11 @@ type TenderResponse struct {
 	Currency            string                `json:"currency"`
 	Duration            string                `json:"duration"`
 	DurationUnit        string                `json:"duration_unit"`
+	PublicationDate     int64                 `json:"publication_date"`
 	TenderDeadline      int64                 `json:"tender_deadline"`
 	SubmissionDeadline  int64                 `json:"submission_deadline"`
+	ApplicationDeadline int64                 `json:"application_deadline"`
+	SubmissionURL       string                `json:"submission_url"`
 	CountryCode         string                `json:"country_code"`
 	BuyerOrganization   *OrganizationResponse `json:"buyer_organization"`
 	Status              TenderStatus          `json:"status"`
@@ -56,7 +58,6 @@ func (t *Tender) ToTenderResponse() *TenderResponse {
 	response := &TenderResponse{
 		ID:                  t.ID.Hex(),
 		NoticePublicationID: t.NoticePublicationID,
-		PublicationDate:     t.PublicationDate,
 		Title:               t.Title,
 		Description:         t.Description,
 		ProcurementTypeCode: t.ProcurementTypeCode,
@@ -65,8 +66,11 @@ func (t *Tender) ToTenderResponse() *TenderResponse {
 		Currency:            t.Currency,
 		Duration:            t.Duration,
 		DurationUnit:        t.DurationUnit,
+		PublicationDate:     t.PublicationDate,
 		TenderDeadline:      t.TenderDeadline,
 		SubmissionDeadline:  t.SubmissionDeadline,
+		ApplicationDeadline: t.ApplicationDeadline,
+		SubmissionURL:       t.SubmissionURL,
 		CountryCode:         t.CountryCode,
 		BuyerOrganization:   &OrganizationResponse{Name: t.BuyerOrganization.Name},
 		Status:              t.Status,