Improve performance of conversation (#692)

* Stream endpoint for execution processes (vibe-kanban c5144da6)

I want an endpoint that's similar to task stream in crates/server/src/routes/tasks.rs but contains execution processes.

The structure of the document should be:

```json
{
    "execution_processes": {
        [EXECUTION_PROCESS_ID]: {
            ... execution process fields
        }
    }
}
```

The endpoint should be at `/api/execution_processes/stream?task_attempt_id=...`

crates/server/src/routes/execution_processes.rs

* add virtualizedlist component

* WIP remove execution processes

* rebase syntax fix

* tmp fix lint

* lint

* VirtuosoMessageList

* cache

* event based hook

* historic

* handle failed historic

* running processes

* user message

* loading

* cleanup

* render user message

* style

* fmt

* better indication for setup/cleanup scripts

* fix ref issue

* virtuoso license

* fmt

* update loader

* loading

* fmt

* loading improvements

* copy as markdown styles

* spacing improvement

* flush all historic at once

* padding fix

* markdown copy sticky

* make user message editable

* edit message

* reset

* cleanup

* hook order

* remove dead code

.github/workflows/pre-release.yml

@@ -115,6 +115,8 @@ jobs:
   build-frontend:
     needs: bump-version
     runs-on: ubuntu-22.04
+    env:
+      VITE_PUBLIC_REACT_VIRTUOSO_LICENSE_KEY: ${{ secrets.PUBLIC_REACT_VIRTUOSO_LICENSE_KEY }}
     steps:
       - uses: actions/checkout@v4
         with: