refactor: stabilize runtime and unify config

pkg/agent/loop_message_target_test.go

@@ -0,0 +1,30 @@
+package agent
+
+import "testing"
+
+func TestResolveMessageToolTargetUsesStringHelpers(t *testing.T) {
+	channel, chat := resolveMessageToolTarget(map[string]interface{}{
+		"channel": "telegram",
+		"to":      "chat-2",
+	}, "whatsapp", "chat-1")
+	if channel != "telegram" || chat != "chat-2" {
+		t.Fatalf("unexpected target: %s %s", channel, chat)
+	}
+
+	channel, chat = resolveMessageToolTarget(map[string]interface{}{}, "whatsapp", "chat-1")
+	if channel != "whatsapp" || chat != "chat-1" {
+		t.Fatalf("unexpected fallback target: %s %s", channel, chat)
+	}
+}
+
+func TestNodeAgentTaskResultUsesCompatiblePayloadFields(t *testing.T) {
+	if got := nodeAgentTaskResult(map[string]interface{}{"result": "done"}); got != "done" {
+		t.Fatalf("unexpected result field extraction: %q", got)
+	}
+	if got := nodeAgentTaskResult(map[string]interface{}{"content": "fallback"}); got != "fallback" {
+		t.Fatalf("unexpected content field extraction: %q", got)
+	}
+	if got := nodeAgentTaskResult(nil); got != "" {
+		t.Fatalf("expected empty result for nil payload, got %q", got)
+	}
+}