feat(admission): add group VPN exceptions

packages/network/src/index.ts

@@ -51,7 +51,9 @@ function numberValue(value: unknown) {
 }
 
 function proxyClassification(proxy: unknown, type: unknown): IpClassification {
-  if (String(proxy).toLowerCase() !== "yes") return "clear";
+  const normalizedProxy = String(proxy).toLowerCase();
+  if (normalizedProxy === "no") return "clear";
+  if (normalizedProxy !== "yes") return "unknown";
   const normalizedType = String(type ?? "").toLowerCase();
   if (normalizedType.includes("tor")) return "tor";
   if (normalizedType.includes("vpn")) return "vpn";

packages/network/test/proxycheck.test.ts

@@ -50,6 +50,14 @@ describe("ProxyCheck.io intelligence", () => {
     );
   });
 
+  it("treats missing or malformed proxy signals as unknown", async () => {
+    for (const proxy of [undefined, null, "maybe"] as const) {
+      const request = vi.fn<typeof fetch>().mockResolvedValue(response({ proxy, type: "Residential" }));
+      await expect(new ProxyCheckProvider({ apiKey: "secret", request }).classify(ipAddress))
+        .resolves.toMatchObject({ classification: "unknown", network: { proxy: null } });
+    }
+  });
+
   it("maps VPN and Tor responses to explicit classifications", async () => {
     const vpnRequest = vi.fn<typeof fetch>().mockResolvedValue(response({ proxy: "yes", type: "VPN" }));
     const torRequest = vi.fn<typeof fetch>().mockResolvedValue(response({ proxy: "yes", type: "TOR" }));