Configure hotspot credentials from dashboard

server/tests/app.test.ts

@@ -20,7 +20,8 @@ function testConfig(): AppConfig {
     network: {
       enabled: false,
       statusPath: `/tmp/pi-car-companion-test-${process.pid}-missing-network-status.json`,
-      commandPath: `/tmp/pi-car-companion-test-${process.pid}-network-command.json`
+      commandPath: `/tmp/pi-car-companion-test-${process.pid}-network-command.json`,
+      configurationRequestPath: `/tmp/pi-car-companion-test-${process.pid}-network-configuration.json`
     },
     adb: { enabled: false, executable: "adb", serial: null, timeoutMs: 3_000 }
   };
@@ -210,6 +211,15 @@ describe("authentication boundary", () => {
       payload: { action: "retry-upstream" }
     });
     expect(action.statusCode).toBe(503);
+
+    const invalidConfiguration = await app.inject({
+      method: "POST",
+      url: "/api/network/configuration",
+      headers: { ...mutationHeaders(token), cookie },
+      payload: { ssid: "bad/name", password: "short" }
+    });
+    expect(invalidConfiguration.statusCode).toBe(400);
+    expect(invalidConfiguration.json()).toMatchObject({ error: { code: "INVALID_HOTSPOT_CONFIGURATION" } });
   });
 
   it("exposes only allowlisted jobs and authenticated run history", async () => {