[BUG] 1.7.2 Document Store: Double quotes are not escaped, flow crashes

[OY-Linkin]

Describe the bug
Double quotes in the data of a Document Store are not properly escaped, so using them in a chat flow it crashes with a JSON error.

To Reproduce
Steps to reproduce the behavior:

1. Create a new Document Store with a Document Loader Plain Text: Name = "Michael"
2. Link the Document Store Node in your chat flow and connect it to a variable in your system prompt
3. Run the chat flow.
4. See error: "SyntaxError: Expected ',' or '}' after property value in JSON"

Expected behavior
Flow should build and run normally.

Screenshots

Flow
Debug Chatflow (1).json

Setup

• Installation: Locallynpx flowise start
• Flowise Version 1.7.2
• OS: macOS
• Browser Chrome

Additional context
Using the same string (Name:"Michael") in a plain text node works fine.