Let the GPS and custom watermarks be rotated

src/utils/exportEngine.ts

@@ -46,6 +46,10 @@ export interface ExportOptions {
     size?: number;
     font?: string | null;
   } | null;
+  // WATERMARK tab ROTATE chip: clockwise degrees (0/90/180/270) applied to
+  // BOTH the GPS lines and the custom text, each around its own anchor (the
+  // same anchor Viewfinder rotates around, so the preview matches the file).
+  watermarkRotation?: number;
   // Library framed-window photo reposition (Viewfinder.getFrameWindowZoom):
   // after pinch/drag inside a polaroid card window or a wall-frame opening,
   // s = scale and u/v = the fraction of the photo's cover plane sitting at the
@@ -596,10 +600,16 @@ export async function processAndExportPhoto(
             baseY = stampH - fontSize * 1.5;
           }
 
+          // Spin the whole two-line block around its top-left (the anchor the
+          // viewfinder uses). 0 = the historical upright look.
+          const wmRot = options?.watermarkRotation ?? 0;
+          stampCanvas.save();
+          if (wmRot) stampCanvas.rotate(wmRot, baseX, baseY - Math.round(fontSize * 2.4));
           stampCanvas.drawText('📍', baseX, baseY - fontSize * 1.4, iconPaint, iconFont);
           stampCanvas.drawText(locationName, baseX + gap, baseY - fontSize * 1.4, textPaint, font);
           stampCanvas.drawText('📷', baseX, baseY, iconPaint, iconFont);
           stampCanvas.drawText(timestampStr, baseX + gap, baseY, textPaint, font);
+          stampCanvas.restore();
         }
 
         // Custom watermark: baseline at the dragged fraction of the photo/window
@@ -623,7 +633,11 @@ export async function processAndExportPhoto(
           wmPaint.setColor(Skia.Color(customWm.color ?? '#f59e0b'));
           const tx = area.dx + clamp01(customWm.x) * area.dw;
           const ty = area.dy + clamp01(customWm.y) * area.dh + Math.round(wmSize * 0.35);
+          const wmRot = options?.watermarkRotation ?? 0;
+          stampCanvas.save();
+          if (wmRot) stampCanvas.rotate(wmRot, tx, ty);
           stampCanvas.drawText(customWm.text, tx, ty, wmPaint, wmFont);
+          stampCanvas.restore();
         }
       }
     }