macOS: fold agent control into GatewayConnection

apps/macos/Tests/ClawdisIPCTests/GatewayConnectionControlTests.swift

@@ -0,0 +1,22 @@
+import Testing
+@testable import Clawdis
+@testable import ClawdisIPC
+
+@Suite(.serialized) struct GatewayConnectionControlTests {
+    @Test func statusFailsWhenProcessMissing() async {
+        let result = await GatewayConnection.shared.status()
+        // We don't assert ok because the worker may not be available in CI.
+        // Instead, ensure the call returns without throwing and provides a message.
+        #expect(result.ok == true || result.error != nil)
+    }
+
+    @Test func rejectEmptyMessage() async {
+        let result = await GatewayConnection.shared.sendAgent(
+            message: "",
+            thinking: nil,
+            sessionKey: "main",
+            deliver: false,
+            to: nil)
+        #expect(result.ok == false)
+    }
+}