[web] integrate clsi-cache into download pdf from project dashboard (#31138)

* [monorepo] fix downloads from non-sharded clsi-cache

* [web] check some compile from cache options server-side

* [web] integrate clsi-cache into download pdf from project dashboard

* [web] remove frontend tests for server-side validation

* [web] remove unused fetch mock

* [web] use helper that adds polyfill for AbortSignal.any()

* [web] upgrade fetch-mock to fix leaking AbortSignal

* [web] do not add an extra timeout to clsi-cache request

The web backend service has a low timeout already.

GitOrigin-RevId: a90984b92f5d4f24005db5a09f2c5d2424436886

services/web/package.json

@@ -330,7 +330,7 @@
     "eventsource-client": "^1.1.4",
     "fake-indexeddb": "^6.0.0",
     "fast-fuzzy": "^1.12.0",
-    "fetch-mock": "^12.5.2",
+    "fetch-mock": "^12.6.0",
     "formik": "^2.2.9",
     "fuse.js": "^7.0.0",
     "glob": "^12.0.0",