test(ios): add smoke coverage tests

apps/ios/Tests/IOSBridgeChatTransportTests.swift

@@ -0,0 +1,34 @@
+import Testing
+@testable import Clawdis
+
+@Suite struct IOSBridgeChatTransportTests {
+    @Test func requestsFailFastWhenBridgeNotConnected() async {
+        let bridge = BridgeSession()
+        let transport = IOSBridgeChatTransport(bridge: bridge)
+
+        do {
+            try await transport.setActiveSessionKey("node-test")
+            Issue.record("Expected setActiveSessionKey to throw when bridge not connected")
+        } catch {}
+
+        do {
+            _ = try await transport.requestHistory(sessionKey: "node-test")
+            Issue.record("Expected requestHistory to throw when bridge not connected")
+        } catch {}
+
+        do {
+            _ = try await transport.sendMessage(
+                sessionKey: "node-test",
+                message: "hello",
+                thinking: "low",
+                idempotencyKey: "idempotency",
+                attachments: [])
+            Issue.record("Expected sendMessage to throw when bridge not connected")
+        } catch {}
+
+        do {
+            _ = try await transport.requestHealth(timeoutMs: 250)
+        } catch {}
+    }
+}
+