[Task]: Basic PII integration into dashboard

[lxmcgvrn]

Description

Luke recently merged a PR that introduces PII protections into Codegate: stacklok/codegate#919

This should now be generating alerts when provide a file containing PII to an LLM. (See the relevant dir in the codegate-demonstration repo).

My understanding is that the PII alerts produced should have trigger_type: "codegate-pii" in the JSON blob.

The task here is to:

• Include PII as one of the "filter tabs"
  
• Include PII in the summary attached to each conversation
  
• Include PII in the "summary block" in the conversation route
  
• Add an empty state for PII into the table's empty state component
  

Optional

Longer term, we will probably want to display a tab in the conversation view summarising PII discovered & redacted. However I'm not sure that we have landed on a long-term chosen design for this. The current implementation of the secrets summary is very basic and needs improving.

The concerns around this are:

• The markdown is not consistent, and repeats redundant information, so it not suited to rendering in a list format
• There is no structured data around secrets that is returned to be rendered in a list/table format

For PII, these constraints may also apply, I think it's open to interpretation on the best way to integrate this.

Additional Context

No response