fix: refine Telegram links and mailbox selector

apps/api/internal/app/telegram.go

@@ -473,6 +473,7 @@ func sanitizeTelegramAttachmentName(value string) string {
 var (
 	telegramOTPKeywordRe   = regexp.MustCompile(`(?i)(验证码|校验码|动态码|登录码|安全码|一次性密码|otp|verification[ -]?code|security[ -]?code|login[ -]?code|passcode|one[ -]?time[ -]?(?:password|code))`)
 	telegramOTPCandidateRe = regexp.MustCompile(`(?i)[a-z0-9]{4,10}`)
+	telegramURLRe          = regexp.MustCompile(`(?i)https?://[^\s<>"']+`)
 )
 
 func detectTelegramOTP(subject, body string) string {
@@ -506,6 +507,9 @@ func detectTelegramOTP(subject, body string) string {
 		if !hasDigit || telegramOTPKeywordRe.MatchString(value) {
 			continue
 		}
+		if isTelegramOTPNonCode(value) {
+			continue
+		}
 		best := 0
 		for _, keyword := range keywords {
 			distance := match[0] - keyword[1]
@@ -557,6 +561,20 @@ func detectTelegramOTP(subject, body string) string {
 	return items[0].value
 }
 
+func isTelegramOTPNonCode(value string) bool {
+	if len(value) == 4 {
+		if year, err := strconv.Atoi(value); err == nil && year >= 1900 && year <= 2099 {
+			return true
+		}
+	}
+	if len(value) == 8 {
+		if _, err := time.Parse("20060102", value); err == nil {
+			return true
+		}
+	}
+	return false
+}
+
 func isTelegramOTPAlphaNumeric(r rune) bool {
 	return r <= unicode.MaxASCII && (unicode.IsLetter(r) || unicode.IsDigit(r))
 }
@@ -723,7 +741,7 @@ func formatTelegramMailMessage(payload telegramMailPayload) telegramFormattedMes
 		}
 		prefix := strings.Join(lines, "\n") + "\n\n<b>" + label + "</b>\n<blockquote>"
 		suffix := "</blockquote>"
-		body = escapeTelegramWithinBudget(body, telegramMessageBudget-utf8.RuneCountInString(prefix)-utf8.RuneCountInString(suffix))
+		body = formatTelegramBodyHTML(body, telegramMessageBudget-utf8.RuneCountInString(prefix)-utf8.RuneCountInString(suffix))
 		lines = []string{prefix + body + suffix}
 	}
 	htmlText := strings.Join(lines, "\n")
@@ -731,6 +749,73 @@ func formatTelegramMailMessage(payload telegramMailPayload) telegramFormattedMes
 	return telegramFormattedMessage{HTML: htmlText, PlainText: plain, OTP: payload.OTP}
 }
 
+func formatTelegramBodyHTML(value string, budget int) string {
+	if budget <= 3 {
+		return ""
+	}
+	var out strings.Builder
+	used := 0
+	truncated := false
+	appendEscaped := func(text string) bool {
+		for _, r := range text {
+			escaped := html.EscapeString(string(r))
+			length := utf8.RuneCountInString(escaped)
+			if used+length > budget-3 {
+				return false
+			}
+			out.WriteString(escaped)
+			used += length
+		}
+		return true
+	}
+	last := 0
+	for _, match := range telegramURLRe.FindAllStringIndex(value, -1) {
+		if !appendEscaped(value[last:match[0]]) {
+			truncated = true
+			break
+		}
+		rawURL, trailing := trimTelegramURL(value[match[0]:match[1]])
+		parsed, err := url.Parse(rawURL)
+		if err != nil || parsed.Host == "" || (parsed.Scheme != "http" && parsed.Scheme != "https") {
+			if !appendEscaped(value[match[0]:match[1]]) {
+				truncated = true
+				break
+			}
+			last = match[1]
+			continue
+		}
+		display := rawURL
+		if utf8.RuneCountInString(display) > 72 {
+			display = "🔗 " + parsed.Hostname() + " 链接"
+		}
+		anchor := `<a href="` + html.EscapeString(rawURL) + `">` + html.EscapeString(display) + `</a>`
+		length := utf8.RuneCountInString(anchor)
+		if used+length > budget-3 {
+			truncated = true
+			break
+		}
+		out.WriteString(anchor)
+		used += length
+		if !appendEscaped(trailing) {
+			truncated = true
+			break
+		}
+		last = match[1]
+	}
+	if !truncated && last < len(value) && !appendEscaped(value[last:]) {
+		truncated = true
+	}
+	if truncated {
+		out.WriteString("...")
+	}
+	return out.String()
+}
+
+func trimTelegramURL(value string) (string, string) {
+	trimmed := strings.TrimRight(value, ".,;:!?)]}，。；：！？）》】")
+	return trimmed, value[len(trimmed):]
+}
+
 func (a *App) sendTelegramMessage(ctx context.Context, token, chatID, text string) error {
 	_, err := a.sendTelegramPayload(ctx, token, map[string]any{
 		"chat_id":                  chatID,

apps/api/internal/app/telegram_test.go

@@ -223,6 +223,42 @@ func TestTelegramOTPDetectionAndMessageBudget(t *testing.T) {
 	}
 }
 
+func TestTelegramForwardedGateOTPAndLinks(t *testing.T) {
+	body := `---------- Forwarded message ---------
+Date: 2026年8月6日周四 17:59
+Subject: 登录验证码 (https://www.gate.com)
+
+Gate 检测到您的账号正试图从此 IP 获得登录验证码：
+IP: 87.83.105.229
+如为您本人登录，请输入如下验证码完成操作：
+311665
+如非本人操作，请点击此处禁用账户 <https://data.gate.com/track/click?token=abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789>`
+	if otp := detectTelegramOTP("Fwd: 登录验证码 (https://www.gate.com)", body); otp != "311665" {
+		t.Fatalf("forwarded Gate OTP not detected: %q", otp)
+	}
+	if otp := detectTelegramOTP("登录验证码", "日期 2026-08-06，验证码将在稍后发送"); otp != "" {
+		t.Fatalf("year was incorrectly detected as OTP: %q", otp)
+	}
+	message := formatTelegramMailMessage(telegramMailPayload{
+		From: "no-reply@alert.gate.com", Recipient: "admin@example.com", Subject: "登录验证码",
+		ReceivedAt: time.Now().UTC().Format(time.RFC3339Nano), Body: body, BodyMode: "full", OTP: "311665",
+	})
+	if !strings.Contains(message.HTML, `<a href="https://www.gate.com">https://www.gate.com</a>`) {
+		t.Fatalf("normal URL was not linkified: %s", message.HTML)
+	}
+	if !strings.Contains(message.HTML, `>🔗 data.gate.com 链接</a>`) {
+		t.Fatalf("long tracking URL was not shortened: %s", message.HTML)
+	}
+	if strings.Contains(message.HTML, "&lt;a href=") || utf8.RuneCountInString(message.HTML) > telegramMessageBudget {
+		t.Fatalf("generated Telegram HTML is invalid or too long: %s", message.HTML)
+	}
+	markup := telegramCopyMarkup(message.OTP)
+	buttons, ok := markup["inline_keyboard"].([][]map[string]any)
+	if !ok || len(buttons) != 1 || len(buttons[0]) != 1 || buttons[0][0]["text"] != "复制验证码" {
+		t.Fatalf("copy OTP button missing: %#v", markup)
+	}
+}
+
 func TestTelegramPseudoHTMLAndBodyCharset(t *testing.T) {
 	pseudo := `<html><head><style>.hidden{display:none}</style></head><body><p>验证码：778899</p><div>欢迎登录</div></body></html>`
 	text := telegramMessageBody(storedMessage{BodyText: pseudo})

apps/web/src/pages/mail.tsx

@@ -3292,7 +3292,7 @@ function MailboxSwitcher({ collapsed, mailboxes, loading, selectedMailboxId, sel
         align="start"
         className={cn(
           "max-w-[calc(100vw-32px)] p-1",
-          collapsed ? "w-[204px]" : "w-[21rem] min-w-[var(--radix-dropdown-menu-trigger-width)]"
+          collapsed ? "w-[204px]" : "w-[var(--radix-dropdown-menu-trigger-width)] min-w-0"
         )}
       >
         {mailboxes.length > 0 && (