Is it possible to develop google chrome extension using jquery, sqlite and os filesystem?

I'm web developer, but not browser extension developer.
But i tried it few days ago with jquery. It's realy fun :)

A story:
I have old *.exe program (catalog of spare parts), which was developed in 1999-2000 years using old viking's platform as "Delphi 5". Main idea of this app is to select some data from *.db or *.dbf files (don't remember exactly), and return it to user. Developer is unknown, and this executable program was damaged by some virus in whole network. They have no backups. But virus doesn't damage database files (Paradox v7) and image files, which names are stored in that database.

My task:
I have a task to do any application which will provide possibility of getting results of query execution to that paradox database. The simplest way to me is to convert paradox tables to mysql, set some indexes and write few selects. Using php write backend of this application and make UI with HMTL + javascript. But it will have bad usability: need to install apache, mysql, php and configure it on every machine ( a lot of machines have no internet connection).
So I would like to develop something more portable, for example google chrome extension.

I have:
- paradox 7 db files (~ 23mb of data)
- folder with images (~ 0.9Gb of data)


Questions:
Is it possible to:
1. develop extension which can send queries to sqlite database using only javascript or chrome API (we say no to server solution).
2. read\write configuration file from chrome extension (for example path to directory where images stored )

Give me please links with code examples, where I can read about each requirement?

Or maybe you have any ideas of other portable app? But don't propose me to use "Delphi, "C Builder".. I don't want to remember it. Many thank for any idea