Add web-worker to hash-frontend for elkjs compatibility

elkjs/lib/main.js calls require.resolve('web-worker') inside a
try/catch, but Webpack statically analyzes it and fails if the package
is not resolvable.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kube

apps/hash-frontend/package.json

@@ -127,7 +127,8 @@
     "signia-react": "0.1.5",
     "url-regex-safe": "4.0.0",
     "use-font-face-observer": "1.3.0",
-    "uuid": "13.0.0"
+    "uuid": "13.0.0",
+    "web-worker": "1.4.1"
   },
   "devDependencies": {
     "@graphql-codegen/cli": "^5.0.3",

libs/@hashintel/petrinaut/CLAUDE.md

@@ -26,7 +26,7 @@ function useMyHook() {
 }
 ```
 
-The compiler runs with `panicThreshold: "CRITICAL_ERRORS"` — the build fails if it encounters critical errors not opted out via `"use no memo"`.
+The compiler runs with `panicThreshold: "critical_errors"` — the build fails if it encounters critical errors not opted out via `"use no memo"`.
 
 ## Commands
 

libs/@hashintel/petrinaut/package.json

@@ -49,7 +49,8 @@
     "react-resizable-panels": "4.6.5",
     "typescript": "5.9.3",
     "uuid": "13.0.0",
-    "vscode-languageserver-types": "3.17.5"
+    "vscode-languageserver-types": "3.17.5",
+    "web-worker": "1.4.1"
   },
   "devDependencies": {
     "@hashintel/ds-helpers": "workspace:*",

yarn.lock

@@ -661,6 +661,7 @@ __metadata:
     use-font-face-observer: "npm:1.3.0"
     uuid: "npm:13.0.0"
     wait-on: "npm:9.0.1"
+    web-worker: "npm:1.4.1"
     webpack: "npm:5.104.1"
   languageName: unknown
   linkType: soft
@@ -7979,6 +7980,7 @@ __metadata:
     vite: "npm:8.0.0"
     vitest: "npm:4.1.0"
     vscode-languageserver-types: "npm:3.17.5"
+    web-worker: "npm:1.4.1"
   peerDependencies:
     "@hashintel/ds-components": "workspace:^"
     "@hashintel/ds-helpers": "workspace:^"
@@ -45972,6 +45974,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"web-worker@npm:1.4.1":
+  version: 1.4.1
+  resolution: "web-worker@npm:1.4.1"
+  checksum: 10c0/8b5e6099692ad83e0bcd72595e9bbec9c5cc0c910215dce21379050c9a96d9678f651c161e58f29d5ecf62d50bbd897543b4fa1bcea83cd273dbf219fdda1089
+  languageName: node
+  linkType: hard
+
 "webextension-polyfill@npm:0.12.0":
   version: 0.12.0
   resolution: "webextension-polyfill@npm:0.12.0"