Add reasoning effort

internal/llm/llm_integration_test.go

@@ -77,17 +77,18 @@ func TestIntegration_Completions(t *testing.T) {
 	}
 
 	res, err := client.Completions(
-		context.Background(),
-		testModel(t),
-		"",
-		0,
-		[]Message{{
-			Role: RoleUser,
-			ContentParts: []ContentPart{{
-				Type: "text",
-				Text: "Say hello in three words.",
+		context.Background(), CompletionsParams{
+			Model:         testModel(t),
+			SystemMessage: "",
+			MaxIterations: 0,
+			Messages: []Message{{
+				Role: RoleUser,
+				ContentParts: []ContentPart{{
+					Type: "text",
+					Text: "Say hello in three words.",
+				}},
 			}},
-		}},
+		},
 	)
 	if err != nil {
 		t.Fatalf("Completions: %v", err)
@@ -117,18 +118,18 @@ func TestIntegration_CompletionsStream(t *testing.T) {
 	errCh := make(chan error, 1)
 	go func() {
 		errCh <- client.CompletionsStream(
-			context.Background(),
-			testModel(t),
-			"",
-			0,
-			[]Message{{
-				Role: RoleUser,
-				ContentParts: []ContentPart{{
-					Type: "text",
-					Text: "Say hello in three words.",
+			context.Background(), CompletionsParams{
+				Model:         testModel(t),
+				SystemMessage: "",
+				MaxIterations: 0,
+				Messages: []Message{{
+					Role: RoleUser,
+					ContentParts: []ContentPart{{
+						Type: "text",
+						Text: "Say hello in three words.",
+					}},
 				}},
-			}},
-			events,
+			}, events,
 		)
 	}()
 
@@ -182,17 +183,18 @@ func TestIntegration_ToolCalling(t *testing.T) {
 	}
 
 	res, err := client.Completions(
-		context.Background(),
-		testModel(t),
-		"",
-		10,
-		[]Message{{
-			Role: RoleUser,
-			ContentParts: []ContentPart{{
-				Type: "text",
-				Text: "Use the echo tool to say 'hello'",
+		context.Background(), CompletionsParams{
+			Model:         testModel(t),
+			SystemMessage: "",
+			MaxIterations: 10,
+			Messages: []Message{{
+				Role: RoleUser,
+				ContentParts: []ContentPart{{
+					Type: "text",
+					Text: "Use the echo tool to say 'hello'",
+				}},
 			}},
-		}},
+		},
 	)
 	if err != nil {
 		t.Fatalf("Completions: %v", err)