refactor(navigation): simplify main tab labels

app/gui/widgets.py

@@ -58,9 +58,9 @@ TAB_TITLES = [
     "① 导入采集",
     "② AI生成",
     "③ 更新蝦皮",
-    "④ 账号管理",
-    "⑤ 设置",
-    "⑥ 商品套图",
+    "账号管理",
+    "设置",
+    "商品套图",
 ]
 
 TAB_STYLE = """
@@ -307,19 +307,6 @@ def _login_status_color(status):
     return _qcolor(COLOR_MUTED)
 
 
-def _warning_dot_icon(size=12):
-    pixmap = QPixmap(size, size)
-    pixmap.fill(Qt.transparent)
-    painter = QPainter(pixmap)
-    painter.setRenderHint(QPainter.Antialiasing)
-    painter.setPen(Qt.NoPen)
-    painter.setBrush(QColor(COLOR_WARNING))
-    margin = max(1, size // 6)
-    painter.drawEllipse(margin, margin, size - margin * 2, size - margin * 2)
-    painter.end()
-    return QIcon(pixmap)
-
-
 def _build_empty_state_card(object_name, button_text="前往账号管理"):
     card = QWidget()
     card.setObjectName(object_name)