GuestDocument Versions - Part 1:

- Changed GuestDocument PK from `DocumentType`+`DocumentNumber` to to `ID`+`Version` for future versioning.
- Added DB field "IsLastVersion" to simplify queries where only last/current version is allowed.
- Updated GuestDocument DB fields type for `CreateTime` & `UpdateTime` to add precision.
- Updated usages of GuestDocument PK to new PK.
- Limit delete of a GuestDocument when it's currently used in a StayEntry.

Note: DB changes require recreating db tables, so all data is lost and migration "rollback" is not allowed.

src/Somnia.GuestLog/Components/Pages/GuestDocuments/GuestDocNew.razor

@@ -82,6 +82,7 @@
 
     ePageMode currentPageMode = ePageMode.selectDocId;
     GuestDocIdDTO currentDocId = new() { DocumentNum = "", DocumentType = "" };
+    long? alreadyExistDocId = null;
     GuestDocumentDTO newDocumentModel = new();
 
     bool loadingDocId = false;
@@ -100,7 +101,8 @@
         }
 
         loadingDocId = true;
-        GuestDocumentDTO? dto = await guestDocService.GetDtoByIdAsync(currentDocId.DocumentType, currentDocId.DocumentNum);
+        GuestDocumentDTO? dto =
+            await guestDocService.GetLastVersionDtoByDocumentAsync(currentDocId.DocumentType, currentDocId.DocumentNum);
         loadingDocId = false;
 
         if (dto is null)
@@ -117,6 +119,7 @@
 
         //GuestDoc already exists!
         currentPageMode = ePageMode.alreadyExistDoc;
+        alreadyExistDocId = dto.Id;
     }
 
     private void BtnReturn()
@@ -153,14 +156,15 @@
 
     private void BtnGoToDocument()
     {
-        if (currentPageMode != ePageMode.alreadyExistDoc)
+        if (currentPageMode != ePageMode.alreadyExistDoc || alreadyExistDocId is null)
         {
             userMessage.ShowMessage("Invalid operation!", MessageKind.Error);
             return;
         }
 
-        string docId = GuestDocIdDTO.EncodeAsString(currentDocId);
-        string uri = GuestConsts.Page_GuestDocs_Detail.Replace("{docId}", docId);
+
+        string strId = alreadyExistDocId.Value.ToString();
+        string uri = GuestConsts.Page_GuestDocs_Detail.Replace(GuestConsts.Page_GuestDocs_Detail_Param_DocId, strId);
         Navigation.NavigateTo(uri);
     }