feat(ui) Users can select an annotation to view the passage that was used

[gregclark-defenseunicorns]

User Story

As a LFAI user
I want the reference passage in my chat thread
So that I can have all the context together

Acceptance Criteria

Given I submit a prompt that references a RAG file Design: Annotation Links
When I click on the the annotation link at the end of the response
Then a window opens below the link displaying the passage of the reference file Design: Reference Window
And I am able to scroll file within the window

When I click on an annotation link that is already
Then the reference window closes

NOTE Only one reference window can be open at one time. So if one is already open and another is click then the previous one closes and the new one opens.

When I click on the annotations throughout the response ([1], [2], [3], etc)
Then I am auto scrolled to the bottom of the response
And the link's reference windows opens automatically (Copy behavior as though the link was clicked)

When a reference window opens for a PDF file
Then I see 2 tertiary buttons (Download and Launch)

When a reference windows opens for a NON PDF file
Then I see 1 tertiary button (Download)

When I click the Download button in the reference window
Then the file is downloaded Design: Reference Downloaded

When I click the Launch button in the reference window
Then a new tab opens displaying the PDF Design: PDF Viewer

Additional context

Design Links:

• Annotation Links
• Reference Window
• Reference Downloaded
• PDF Viewer

Functionality Video:
https://github.com/user-attachments/assets/6b9454e6-cde3-4c6a-883e-b755e7a1f379

[andrewrisse]

blocked by #766