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* GeoPos: pan continuously across 0 deg lat/lon (#3317) The DMS coordinate fields store an unsigned magnitude with the sign in a separate hemisphere field (#3283). That made (-1, 0) representable but left interactive panning unable to cross 0: at magnitude zero the minute/ degree carry clamps instead of flipping the hemisphere, so a 1-degree band along the equator and the Greenwich meridian is skipped by the wheel. Route each DMS field's encoder through a signed arcsecond model: a turn moves the coordinate along the number line, and the hemisphere flip plus magnitude reflection fall out of one set of fields being rewritten. E.g. 0 deg 0' 42" E minus one minute now gives 0 deg 0' 18" W as expected. The old per-field on_wrap carry handlers are removed; the fields no longer apply the turn locally. * Correct latitude adjustment reporting logic Fix adjustment logic to only report position if latitude changes. Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * GeoPos: apply the clamp-report guard to longitude too The latitude fix (Copilot review) left adjust_lon() reporting a pan even when set_lon_arcseconds() clamped at +-180 deg and changed nothing. Guard it the same way: report only when the signed arcseconds actually changed. --------- Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>