fix: align docked Q10 robot position

Author: tubededentifrice

roborock/map/b01_q10_render.py

@@ -259,11 +259,15 @@ def _place_charger_from_header(
     map_data: MapData,
     packet: Q10MapPacket,
 ) -> bool:
-    """Place the saved dock using its absolute header pixel coordinates."""
+    """Place the saved dock using its absolute header pixel coordinates.
+
+    The Q10 header angle follows the dock axis, while the shared V1 marker
+    expects the outward-facing normal, so rotate it by 90 degrees.
+    """
     header = packet.header_calibration
     if header is None or (position := header.charger_pixels()) is None:
         return False
-    map_data.charger = Point(*position, -header.charger_phi)
+    map_data.charger = Point(*position, 90 - header.charger_phi)
     return True
 
 

tests/map/test_b01_q10_render.py

@@ -164,13 +164,13 @@ def test_render_draws_dock_from_header_without_trace() -> None:
 
 
 def test_place_charger_uses_absolute_header_pixels() -> None:
-    """The dock coordinates do not receive the world origin a second time."""
+    """The dock uses absolute pixels and converts its axis to a V1 heading."""
     packet = replace(_packet(), header_calibration=HEADER)
     map_data = MapData()
 
     assert _place_charger_from_header(map_data, packet)
 
-    assert map_data.charger == Point(3, 3, -90)
+    assert map_data.charger == Point(3, 3, 0)
 
 
 def test_place_docked_robot_uses_shared_v1_marker_geometry() -> None: