fix: open on Clean tab (index 0) instead of Find/Replace (index 2)

Author: chrisdpurcell

src/views/ui/main_window.ui

@@ -137,7 +137,7 @@
                   <enum>QTabWidget::TabShape::Rounded</enum>
                  </property>
                  <property name="currentIndex">
-                  <number>2</number>
+                  <number>0</number>
                  </property>
                  <property name="documentMode">
                   <bool>false</bool>

tests/integration/test_main_window.py

@@ -335,3 +335,12 @@ def test_error_signal_shows_critical_dialog(self, window, monkeypatch, qtbot):
         qtbot.wait(10)
         assert len(calls) == 1
         assert "something went wrong" in calls[0][2]
+
+
+class TestDefaultTab:
+    def test_opens_on_clean_tab(self, window):
+        """Tab widget must default to index 0 (Clean tab), not 2 (Find/Replace)."""
+        from PySide6.QtWidgets import QTabWidget
+        tab = window.ui.findChild(QTabWidget, "tabWidget")
+        assert tab is not None
+        assert tab.currentIndex() == 0