Keep GPS watermark user-owned across presets; add pinch/double-tap zoom to photo preview; collapse chrome strip on WB selection

src/components/AdjustmentPanel.tsx

@@ -122,12 +122,17 @@ export default function AdjustmentPanel({
 
   const toggleParam = (key: string) => {
     haptic();
+    // One auxiliary row at a time: opening a slider closes any option strip.
+    setOpenGroup(null);
     onOpenParamChange(openParam === key ? null : key);
   };
 
   const toggleGroup = (g: GroupKey) => {
     haptic();
-    setOpenGroup((prev) => (prev === g ? null : g));
+    const next = openGroup === g ? null : g;
+    // Opening an options strip closes any open slider row (single-row rule).
+    if (next) onOpenParamChange(null);
+    setOpenGroup(next);
   };
 
   const a = adjustments;
@@ -245,6 +250,9 @@ export default function AdjustmentPanel({
   };
   const wbApply = (val: string) => {
     setWbChoice(val);
+    // Choosing a preset is a deliberate look switch: collapse any open chrome
+    // options strip so it never lingers above the chips row.
+    setOpenGroup(null);
     const p = WB_PAIRS[val] ?? WB_PAIRS.auto;
     onUpdateAdjustments({ temperature: p.t, tint: p.ti });
   };