changelog: tool headings wrap at 360 (#1524)

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

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

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+- 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).