fix(server): update hire-route test to expect inheritedFromAgentId

The route now sets inheritedFromAgentId on the claudeLogin claim for
every hire. The prior test did not expect this field, so it failed
the exact-equality check for a board-user hire, where the value is
null.

Co-authored-by: Paperclip <noreply@paperclip.ing>

server/src/__tests__/agent-permissions-routes.test.ts

@@ -1283,7 +1283,14 @@ describe.sequential("agent permission routes", () => {
           },
         },
       }),
-      { claudeLogin: { storedSessionId: null, ownerUserId: "board-user", applyExistingWithoutClaim: false } },
+      {
+        claudeLogin: {
+          storedSessionId: null,
+          ownerUserId: "board-user",
+          applyExistingWithoutClaim: false,
+          inheritedFromAgentId: null,
+        },
+      },
     );
   });