Refactor Tender ID Generation Logic in TED Scraper

- Updated the `generateTenderID` method to improve the structure and clarity of the tender ID generation process.
- Changed the source identifier from "TED" to "1" for consistency.
- Modified the handling of the Notice Publication ID, ensuring it is used correctly in the tender ID.
- Simplified the buyer code logic by commenting out the previous implementation, focusing on the essential components.
- Adjusted the date and location code handling to enhance clarity and maintainability, ensuring adherence to Clean Architecture principles.

ted/scraper.go

@@ -1196,34 +1196,29 @@ func (s *TEDScraper) generateTenderID(t *tender.Tender) string {
 	var parts []string
 
 	// Source (TED)
-	parts = append(parts, "TED")
+	parts = append(parts, "1")
 
-	// Buyer code (first 8 chars of buyer organization ID, or 8 zeros if not available)
-	buyerCode := "00000000"
-	if t.BuyerOrganization != nil && t.BuyerOrganization.ID != "" {
-		buyerCode = s.padOrTruncate(t.BuyerOrganization.ID, 8)
-	}
-	parts = append(parts, buyerCode)
-
-	// TED code (Contract Notice ID, first 8 chars)
+	// TED code (Notice Publication ID, first 8 chars)
 	tedCode := "00000000"
-	if t.ContractNoticeID != "" {
-		tedCode = s.padOrTruncate(t.ContractNoticeID, 8)
+	if t.NoticePublicationID != "" {
+		tedCode = s.padOrTruncate(t.NoticePublicationID, 8)
 	}
 	parts = append(parts, tedCode)
 
+	// Buyer code (first 8 chars of buyer organization ID, or 8 zeros if not available)
+	// buyerCode := "00000000"
+	// if t.BuyerOrganization != nil && t.BuyerOrganization.ID != "" {
+	// 	buyerCode = s.padOrTruncate(t.BuyerOrganization.ID, 8)
+	// }
+	// parts = append(parts, buyerCode)
+
 	// Date (YYYYMMDD format from issue date)
-	dateCode := s.unixMilliToDateString(t.IssueDate)
-	parts = append(parts, dateCode)
+	parts = append(parts, s.padOrTruncate(s.unixMilliToDateString(t.IssueDate), 4))
 
 	// Location code (country code + region code, padded to 6 chars)
-	locationCode := "000000"
+	locationCode := "EURO"
 	if t.CountryCode != "" {
-		location := t.CountryCode
-		if t.RegionCode != "" {
-			location += t.RegionCode
-		}
-		locationCode = s.padOrTruncate(location, 6)
+		locationCode = t.CountryCode
 	}
 	parts = append(parts, locationCode)