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

frontend/package.json

@@ -39,12 +39,14 @@
     "@tanstack/react-query-devtools": "^5.85.5",
     "@types/react-window": "^1.8.8",
     "@uiw/react-codemirror": "^4.25.1",
+    "@virtuoso.dev/message-list": "^1.13.3",
     "class-variance-authority": "^0.7.0",
     "click-to-react-component": "^1.1.2",
     "clsx": "^2.0.0",
     "diff": "^8.0.2",
     "embla-carousel-react": "^8.6.0",
     "fancy-ansi": "^0.1.3",
+    "idb": "^8.0.3",
     "lucide-react": "^0.539.0",
     "react": "^18.2.0",
     "react-diff-viewer-continued": "^3.4.0",
@@ -52,7 +54,7 @@
     "react-markdown": "^10.1.0",
     "react-router-dom": "^6.8.1",
     "react-use-measure": "^2.1.7",
-    "react-virtuoso": "^4.13.0",
+    "react-virtuoso": "^4.14.0",
     "react-window": "^1.8.11",
     "rfc6902": "^5.1.2",
     "tailwind-merge": "^2.2.0",
@@ -82,4 +84,4 @@
     "typescript": "^5.9.2",
     "vite": "^5.0.8"
   }
-}
+}