[ACC-2342] Add SearchFilter for FTS on content attributes

[NotAPenguin0]

Implemented by creating a hidden attribute on entities with a FTS filter on content where the text will be stored (by some other process in the AppServer/extraction engine).

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
97.3% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[NielsCW]

I believe you can already construct hidden attributes with the IgnoredFlag and eventually when you enable this search option in the console, scribe will generate the names, add the ignored flag and generate the sql indices. This appserver PR might be useful as a POC to try out some searches. But it is not required for searching content attributes.

[NotAPenguin0]

I believe you can already construct hidden attributes with the IgnoredFlag and eventually when you enable this search option in the console, scribe will generate the names, add the ignored flag and generate the sql indices. This appserver PR might be useful as a POC to try out some searches. But it is not required for searching content attributes.

I'm not sure how this will work yet, since we also need some way to populate this extracted text attribute once the text extraction service is integrated, so I think the app server needs to know which attribute to place the extracted text in.

[thijslemmens]

We should agree on a design before starting to implement.