feat: 收件箱功能新增按回车查看详情面板

- 添加邮件详情面板显示（主题、发件人、收件人、抄送、账户、时间、正文）
- 优化邮件列表卡片样式，增加选中高亮效果
- 窗口宽度 >= 80 时启用双面板布局，左侧列表右侧详情
- 简化依赖包，从 charm.land 使用统一导入路径
- 删除未使用的 golangci/goreleaser 配置文件

model.go

@@ -5,14 +5,14 @@ import (
 	"strings"
 	"time"
 
-	"github.com/charmbracelet/bubbles/filepicker"
-	"github.com/charmbracelet/bubbles/help"
-	"github.com/charmbracelet/bubbles/key"
-	"github.com/charmbracelet/bubbles/list"
-	"github.com/charmbracelet/bubbles/spinner"
-	"github.com/charmbracelet/bubbles/textarea"
-	"github.com/charmbracelet/bubbles/textinput"
-	tea "github.com/charmbracelet/bubbletea"
+	"charm.land/bubbles/v2/filepicker"
+	"charm.land/bubbles/v2/help"
+	"charm.land/bubbles/v2/key"
+	"charm.land/bubbles/v2/list"
+	"charm.land/bubbles/v2/spinner"
+	"charm.land/bubbles/v2/textarea"
+	"charm.land/bubbles/v2/textinput"
+	tea "charm.land/bubbletea/v2"
 	"github.com/charmbracelet/x/exp/ordered"
 	"github.com/resendlabs/resend-go"
 )
@@ -89,68 +89,32 @@ func NewModel(defaults resend.SendEmailRequest, deliveryMethod DeliveryMethod) M
 	from := textinput.New()
 	from.Prompt = "From "
 	from.Placeholder = "me@example.com"
-	from.PromptStyle = labelStyle.Copy()
-	from.PromptStyle = labelStyle
-	from.TextStyle = textStyle
-	from.Cursor.Style = cursorStyle
-	from.PlaceholderStyle = placeholderStyle
 	from.SetValue(defaults.From)
 
 	to := textinput.New()
 	to.Prompt = "To "
-	to.PromptStyle = labelStyle.Copy()
-	to.Cursor.Style = cursorStyle
-	to.PlaceholderStyle = placeholderStyle
-	to.TextStyle = textStyle
 	to.Placeholder = "you@example.com"
 	to.SetValue(strings.Join(defaults.To, ToSeparator))
 
 	cc := textinput.New()
 	cc.Prompt = "Cc "
-	cc.PromptStyle = labelStyle.Copy()
-	cc.Cursor.Style = cursorStyle
-	cc.PlaceholderStyle = placeholderStyle
-	cc.TextStyle = textStyle
 	cc.Placeholder = "cc@example.com"
 	cc.SetValue(strings.Join(defaults.Cc, ToSeparator))
 
 	bcc := textinput.New()
 	bcc.Prompt = "Bcc "
-	bcc.PromptStyle = labelStyle.Copy()
-	bcc.Cursor.Style = cursorStyle
-	bcc.PlaceholderStyle = placeholderStyle
-	bcc.TextStyle = textStyle
 	bcc.Placeholder = "bcc@example.com"
 	bcc.SetValue(strings.Join(defaults.Bcc, ToSeparator))
 
 	subject := textinput.New()
 	subject.Prompt = "Subject "
-	subject.PromptStyle = labelStyle.Copy()
-	subject.Cursor.Style = cursorStyle
-	subject.PlaceholderStyle = placeholderStyle
-	subject.TextStyle = textStyle
 	subject.Placeholder = "Hello!"
 	subject.SetValue(defaults.Subject)
 
 	body := textarea.New()
 	body.Placeholder = "# Email"
-	body.ShowLineNumbers = false
-	body.FocusedStyle.CursorLine = activeTextStyle
-	body.FocusedStyle.Prompt = activeLabelStyle
-	body.FocusedStyle.Text = activeTextStyle
-	body.FocusedStyle.Placeholder = placeholderStyle
-	body.BlurredStyle.CursorLine = textStyle
-	body.BlurredStyle.Prompt = labelStyle
-	body.BlurredStyle.Text = textStyle
-	body.BlurredStyle.Placeholder = placeholderStyle
-	body.Cursor.Style = cursorStyle
-	body.CharLimit = 4000
 	body.SetValue(defaults.Text)
-
-	// Adjust for signature (if none, this is a no-op)
-	body.CursorUp()
-	body.CursorUp()
-
+	body.CharLimit = 4000
 	body.Blur()
 
 	// Decide which input to focus.
@@ -170,9 +134,6 @@ func NewModel(defaults resend.SendEmailRequest, deliveryMethod DeliveryMethod) M
 	attachments.DisableQuitKeybindings()
 	attachments.SetShowTitle(true)
 	attachments.Title = "Attachments"
-	attachments.Styles.Title = labelStyle
-	attachments.Styles.TitleBar = labelStyle
-	attachments.Styles.NoItems = placeholderStyle
 	attachments.SetShowHelp(false)
 	attachments.SetShowStatusBar(false)
 	attachments.SetStatusBarItemName("attachment", "attachments")
@@ -186,7 +147,6 @@ func NewModel(defaults resend.SendEmailRequest, deliveryMethod DeliveryMethod) M
 	picker.CurrentDirectory, _ = os.UserHomeDir()
 
 	loadingSpinner := spinner.New()
-	loadingSpinner.Style = activeLabelStyle
 	loadingSpinner.Spinner = spinner.Dot
 
 	m := Model{
@@ -213,9 +173,7 @@ func NewModel(defaults resend.SendEmailRequest, deliveryMethod DeliveryMethod) M
 
 // Init initializes the model.
 func (m Model) Init() tea.Cmd {
-	return tea.Batch(
-		m.From.Cursor.BlinkCmd(),
-	)
+	return nil
 }
 
 type clearErrMsg struct{}
@@ -370,70 +328,46 @@ func (m *Model) blurInputs() {
 		m.Cc.Blur()
 		m.Bcc.Blur()
 	}
-	m.From.PromptStyle = labelStyle
-	m.To.PromptStyle = labelStyle
-	if m.showCc {
-		m.Cc.PromptStyle = labelStyle
-		m.Cc.TextStyle = textStyle
-		m.Bcc.PromptStyle = labelStyle
-		m.Bcc.TextStyle = textStyle
-	}
-	m.Subject.PromptStyle = labelStyle
-	m.From.TextStyle = textStyle
-	m.To.TextStyle = textStyle
-	m.Subject.TextStyle = textStyle
-	m.Attachments.Styles.Title = labelStyle
 	m.Attachments.SetDelegate(attachmentDelegate{false})
 }
 
 func (m *Model) focusActiveInput() {
 	switch m.state {
 	case editingFrom:
-		m.From.PromptStyle = activeLabelStyle
-		m.From.TextStyle = activeTextStyle
 		m.From.Focus()
 		m.From.CursorEnd()
 	case editingTo:
-		m.To.PromptStyle = activeLabelStyle
-		m.To.TextStyle = activeTextStyle
 		m.To.Focus()
 		m.To.CursorEnd()
 	case editingCc:
-		m.Cc.PromptStyle = activeLabelStyle
-		m.Cc.TextStyle = activeTextStyle
 		m.Cc.Focus()
 		m.Cc.CursorEnd()
 	case editingBcc:
-		m.Bcc.PromptStyle = activeLabelStyle
-		m.Bcc.TextStyle = activeTextStyle
 		m.Bcc.Focus()
 		m.Bcc.CursorEnd()
 	case editingSubject:
-		m.Subject.PromptStyle = activeLabelStyle
-		m.Subject.TextStyle = activeTextStyle
 		m.Subject.Focus()
 		m.Subject.CursorEnd()
 	case editingBody:
 		m.Body.Focus()
 		m.Body.CursorEnd()
 	case editingAttachments:
-		m.Attachments.Styles.Title = activeLabelStyle
 		m.Attachments.SetDelegate(attachmentDelegate{true})
 	}
 }
 
 // View displays the application.
-func (m Model) View() string {
+func (m Model) View() tea.View {
 	if m.quitting {
-		return ""
+		return tea.NewView("")
 	}
 
 	switch m.state {
 	case pickingFile:
-		return "\n" + activeLabelStyle.Render("Attachments") + " " + commentStyle.Render(m.filepicker.CurrentDirectory) +
-			"\n\n" + m.filepicker.View()
+		return tea.NewView("\n" + activeLabelStyle.Render("Attachments") + " " + commentStyle.Render(m.filepicker.CurrentDirectory) +
+			"\n\n" + m.filepicker.View())
 	case sendingEmail:
-		return "\n " + m.loadingSpinner.View() + "Sending email"
+		return tea.NewView("\n " + m.loadingSpinner.View() + "Sending email")
 	}
 
 	var s strings.Builder
@@ -469,5 +403,5 @@ func (m Model) View() string {
 		s.WriteString(errorStyle.Render(m.err.Error()))
 	}
 
-	return paddedStyle.Render(s.String())
+	return tea.NewView(paddedStyle.Render(s.String()))
 }