Integrate all the pieces into a working demo.

[wammar]

Acceptance criteria:

• Verify that each component works (even if it's not working well).
• Define an API endpoint for the offline process as described in schematic diagram which creates the vector DB (and does any additional transformation necessary.) The Vector DB is expected to be created locally. Return the path of the local resource which will be invoked by the online process.
• Implement it ^^.
• Define an API endpoint for the online process as described in the schematic diagram which takes as input the vector DB resource created by the offline process, and text, and returns a list of: terms as strings, each mapping to a list of definitions. Each definition needs to have the following info: complexity score, definition string, source, CUI.
• Implement it ^^.