Address code review feedback: split E2E steps and add bun engine constraint

Co-authored-by: r-near <[email protected]>

Author: Copilot

.github/workflows/pull-request.yml

@@ -49,8 +49,11 @@ jobs:
     - name: Check exports
       run: bun run check-exports
 
+    - name: Install E2E Dependencies
+      run: cd e2e && bun install
+
     - name: E2E tests
-      run: cd e2e && bun install && bun run test
+      run: cd e2e && bun run test
 
   changeset-checks:
     runs-on: ubuntu-latest

package.json

@@ -7,7 +7,8 @@
         "url": "git+https://github.com/near/near-api-js.git"
     },
     "engines": {
-        "node": ">=20.18.3"
+        "node": ">=20.18.3",
+        "bun": ">=1.0.0"
     },
     "packageManager": "[email protected]",
     "homepage": "https://github.com/near/near-api-js",