feat: optimize WebUI stream output and sanitize user-facing answers

internal/llm/client_test.go

@@ -0,0 +1,24 @@
+package llm
+
+import "testing"
+
+func TestShouldDisableThinkingParam(t *testing.T) {
+	if !shouldDisableThinkingParam("https://dashscope.aliyuncs.com/compatible-mode/v1") {
+		t.Fatal("expected DashScope base URL to require enable_thinking=false")
+	}
+	if shouldDisableThinkingParam("https://api.openai.com/v1") {
+		t.Fatal("expected standard OpenAI base URL not to require enable_thinking=false")
+	}
+}
+
+func TestChatCompletionRequestOptions(t *testing.T) {
+	client := &OpenAICompatibleClient{disableThinkingParam: true}
+	if got := len(client.chatCompletionRequestOptions()); got != 1 {
+		t.Fatalf("expected 1 request option when disableThinkingParam=true, got %d", got)
+	}
+
+	client.disableThinkingParam = false
+	if got := len(client.chatCompletionRequestOptions()); got != 0 {
+		t.Fatalf("expected 0 request options when disableThinkingParam=false, got %d", got)
+	}
+}