[Bug]: Data Set Metadata format

### Apache Hop version?

2.8

### Java version?

openjdk version "21.0.3" 2024-04-16 LTS OpenJDK Runtime Environment Microsoft-9388422 (build 21.0.3+9-LTS) OpenJDK 64-Bit Server VM Microsoft-9388422 (build 21.0.3+9-LTS, mixed mode, sharing)

### Operating system

Windows

### What happened?

if i create a data set and do not set format/length/precision. Create some numeric data with and re-open the dataset... it write data only up to one digit. Do HOP guarantees this behavior?
Pi field Number
save as 3.14 and reopen as 3.1
csv file contains 3.1

### Issue Priority

Priority: 3

### Issue Component

Component: Metadata

Start by reproducing this in Apache Hop 2.8 on Windows with a dataset whose numeric field has no format, length, or precision. Investigate the Metadata component and compare the saved value, reopened dataset, and CSV output. Done means a value such as 3.14 is preserved after reopening and in the CSV, or the behavior is documented as guaranteed.

Written by the indexing model from the issue text.