feat: add openrouter

app/config.go

@@ -39,9 +39,9 @@ func (c *Config) ValidateBase() error {
 		return fmt.Errorf("api key is required (set OPENAI_API_KEY or ANTHROPIC_API_KEY)")
 	}
 	switch c.Provider {
-	case "openai", "anthropic", "gemini":
+	case "openai", "anthropic", "gemini", "openrouter":
 	default:
-		return fmt.Errorf("unsupported provider %q (use openai/anthropic/gemini)", c.Provider)
+		return fmt.Errorf("unsupported provider %q (use openai/anthropic/gemini/openrouter)", c.Provider)
 	}
 	return nil
 }

app/run.go

@@ -5,8 +5,10 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"io"
 	"log"
 	"os"
+	"path/filepath"
 	"slices"
 	"strings"
 	"time"
@@ -43,6 +45,11 @@ func Run(cfg Config, refs tools.References, prompts Prompts, styles map[string]s
 		return fmt.Errorf("init store: %w", err)
 	}
 
+	// 1.5 日志写入文件（CLI 模式同时输出到 stderr 和日志文件）
+	if cleanup := setupFileLogger(store.Dir()); cleanup != nil {
+		defer cleanup()
+	}
+
 	// 2. 创建模型
 	model, err := createModel(cfg)
 	if err != nil {
@@ -505,6 +512,23 @@ func finalizeSteerIfIdle(store *state.Store) {
 	clearHandledSteer(store)
 }
 
+// setupFileLogger 设置 CLI 模式日志，同时输出到 stderr 和日志文件。
+func setupFileLogger(outputDir string) func() {
+	logPath := filepath.Join(outputDir, "meta", "cli.log")
+	if err := os.MkdirAll(filepath.Dir(logPath), 0o755); err != nil {
+		return nil
+	}
+	f, err := os.OpenFile(logPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o644)
+	if err != nil {
+		return nil
+	}
+	log.SetOutput(io.MultiWriter(os.Stderr, f))
+	return func() {
+		log.SetOutput(os.Stderr)
+		_ = f.Close()
+	}
+}
+
 // createModel 根据 provider 创建对应的 LLM 模型。
 func createModel(cfg Config) (agentcore.ChatModel, error) {
 	var baseURL []string
@@ -516,7 +540,7 @@ func createModel(cfg Config) (agentcore.ChatModel, error) {
 		return llm.NewAnthropicModel(cfg.ModelName, cfg.APIKey, baseURL...)
 	case "gemini":
 		return llm.NewGeminiModel(cfg.ModelName, cfg.APIKey, baseURL...)
-	default:
+	default: // openai, openrouter 及其他 OpenAI 兼容服务
 		return llm.NewOpenAIModel(cfg.ModelName, cfg.APIKey, baseURL...)
 	}
 }

main.go

@@ -46,15 +46,19 @@ func main() {
 }
 
 func buildConfig(style string) app.Config {
-	provider := envOr("LLM_PROVIDER", "openai")
+	provider := envOr("LLM_PROVIDER", "openrouter")
 	apiKey := os.Getenv("Z_OPENAI_API_KEY")
 	baseURL := os.Getenv("Z_OPENAI_BASE_URL")
-	if provider == "anthropic" {
+	switch provider {
+	case "anthropic":
 		apiKey = envOr("ANTHROPIC_API_KEY", apiKey)
 		baseURL = envOr("ANTHROPIC_BASE_URL", baseURL)
-	} else if provider == "gemini" {
+	case "gemini":
 		apiKey = envOr("GEMINI_API_KEY", apiKey)
 		baseURL = envOr("GEMINI_BASE_URL", baseURL)
+	case "openrouter":
+		apiKey = envOr("OPENROUTER_API_KEY", apiKey)
+		baseURL = envOr("OPENROUTER_BASE_URL", "https://openrouter.ai/api/v1")
 	}
 
 	cfg := app.Config{
@@ -62,7 +66,7 @@ func buildConfig(style string) app.Config {
 		Provider:  provider,
 		APIKey:    apiKey,
 		BaseURL:   baseURL,
-		ModelName: envOr("MODEL_NAME", ""),
+		ModelName: "stepfun/step-3.5-flash:free",
 		Style:     style,
 	}
 	return cfg

tui/model.go

@@ -279,7 +279,7 @@ func (m *Model) updateViewportSize() {
 	bodyH := m.bodyHeight()
 	eventH, streamH := m.splitHeights(bodyH)
 	m.viewport.Width = centerW - 2
-	m.viewport.Height = eventH
+	m.viewport.Height = eventH - 1 // -1 为 event panel header 行
 	m.streamVP.Width = centerW - 2
 	m.streamVP.Height = streamH - 1 // -1 为 stream panel header 行
 }
@@ -366,16 +366,16 @@ func (m Model) View() string {
 		centerW := m.width - leftW - rightW
 		eventH, streamH := m.splitHeights(bodyH)
 
-		if m.viewport.Width != centerW-2 || m.viewport.Height != eventH {
+		if m.viewport.Width != centerW-2 || m.viewport.Height != eventH-1 {
 			m.viewport.Width = centerW - 2
-			m.viewport.Height = eventH
+			m.viewport.Height = eventH - 1 // -1 为 event panel header 行
 		}
 		if m.streamVP.Width != centerW-2 || m.streamVP.Height != streamH-1 {
 			m.streamVP.Width = centerW - 2
 			m.streamVP.Height = streamH - 1 // -1 为 stream panel header 行
 		}
 
-		eventFlow := renderEventFlowViewport(m.viewport, centerW, eventH)
+		eventFlow := renderEventFlowViewport(m.viewport, centerW, eventH, !m.focusStream)
 		streamPanel := renderStreamPanel(m.streamVP, centerW, streamH, m.focusStream)
 		center := lipgloss.JoinVertical(lipgloss.Left, eventFlow, streamPanel)
 

tui/panels.go

@@ -170,13 +170,30 @@ func renderEventContent(events []app.UIEvent, width int) string {
 }
 
 // renderEventFlowViewport 用 viewport 包装渲染事件流面板。
-func renderEventFlowViewport(vp viewport.Model, width, height int) string {
+func renderEventFlowViewport(vp viewport.Model, width, height int, focused bool) string {
+	// 标题栏
+	titleColor := colorDim
+	if focused {
+		titleColor = colorAccent
+	}
+	title := lipgloss.NewStyle().Foreground(titleColor).Render("✦ 事件流")
+	lineW := width - lipgloss.Width(title) - 4
+	if lineW < 0 {
+		lineW = 0
+	}
+	separator := lipgloss.NewStyle().Foreground(colorDim).Render(strings.Repeat("─", lineW))
+	header := " " + title + " " + separator
+
+	vpH := height - 1
+	if vpH < 1 {
+		vpH = 1
+	}
 	style := lipgloss.NewStyle().
 		Width(width).
-		Height(height).
+		Height(vpH).
 		Padding(0, 1)
 
-	return style.Render(vp.View())
+	return header + "\n" + style.Render(vp.View())
 }
 
 // renderStreamPanel 渲染流式输出面板（中间列下半部分）。