fix(review): #90 persist the dimension-overlay copy with its role

The Capture→Review upload filtered out the overlay (role !== 'overlay') and
sent no role field, so the dimension-overlay copy was never stored and every
photo defaulted to role=batch. Review then fell back to a stored /processed
URL that had no dimensions drawn — the owner saw the overlay thumbnail
without its measurements. Now upload the full lineup with the correct role,
keeping the overlay's dimension-drawn blob as both original and processed.

frontend/src/App.svelte

@@ -105,16 +105,22 @@
         content_source: 'manual',
         client_rev: 0,
       });
-      const pngItems = capture.lineup.filter(
-        (it) => it.kind === 'png' && it.role !== 'overlay',
-      );
+      // #90 / REVIEW-5: persist the full lineup with correct roles so the Review
+      // strip matches in-memory blobs by role. The overlay is the dimension-drawn
+      // copy — it must be persisted (its blob already has the dimensions) and is
+      // the photo the owner sees with the measurement overlay. Excluding it (the
+      // old `role !== 'overlay'` filter) dropped the dimension copy from Review.
+      const pngItems = capture.lineup.filter((it) => it.kind === 'png');
       for (let i = 0; i < pngItems.length; i++) {
         const it = pngItems[i];
         await uploadPhoto(id, {
           photoId: uuid(),
           seq: i + 1,
           isCalibration: it.role === 'calibration',
+          role: it.role,
           original: it.blob,
+          // The calibration/batch PNGs have no separate processed variant; the
+          // overlay blob already carries the drawn dimensions.
           processed: it.blob,
         });
       }