bigint/numeric data results are being sent out as string

### Current Behavior

bigint/numeric data results are being sent out as string

### Expected Behavior

numeric data values to be type numeric

### Steps To Reproduce

query a table with numric values - you get string values

### Environment

- FlowFuse version:
- Node.js version:
- npm version:
- Platform/OS:
- Browser:

### Linked Customers

- Customer name and/or link to HubSpot contact

The issue names no files, tests, or entry points. Start by reproducing the problem with a table containing bigint or numeric values and trace the query result handling. Done means numeric database values are returned as numeric values rather than strings.

Written by the indexing model from the issue text.