docs(tools): say heading values wrap into 0-359, not that 359.5 and up read 0

Co-Authored-By: Claude Opus 5.5 <[email protected]>

changelog.d/1524-tools-heading-wrap.md

@@ -1,4 +1,4 @@
-- The agent and voice query tools report a direction of 359.5° or more as 0
-  instead of 360: vessel course and heading, aircraft course, transit bearing,
-  camera heading and satellite azimuths now round through the shared heading
-  helper the layers use (@quanticsoul4772, #1524).
+- The agent and voice query tools report a direction that rounds to 360 as 0:
+  vessel course and heading, aircraft course, transit bearing, camera heading
+  and satellite azimuths now round through the shared heading helper the
+  layers use, which wraps into 0–359 (@quanticsoul4772, #1524).