Focus a text field when the edit dialog opens, never the date input

showModal() with no explicit focus autofocuses the first control — the
date input — which on iOS pops the native calendar over the form. Focus
weight/grams/note per event type instead, like openNoteDialog does.

src/app.js

@@ -1974,6 +1974,14 @@
     }
     renderEditPhotos();
     editDialog.showModal();
+    // Without an explicit focus the browser autofocuses the first control —
+    // the date input — and iOS immediately pops the calendar over the form.
+    // Land on the first relevant text field instead (same trick and delay as
+    // openNoteDialog: synchronous focus can be lost while the dialog settles).
+    const focusTarget = !editWeightField.hidden ? editWeight
+                      : !editGramsField.hidden  ? editGrams
+                      : editNote;
+    setTimeout(() => focusTarget.focus(), 50);
   }
 
   editPhotoBtn.addEventListener("click", () => editPhotoInput.click());

src/changelog.json

@@ -1,4 +1,5 @@
 [
+  { "date": "2026-07-15", "text": "Editing an event no longer pops the date picker over the whole screen on iPhone" },
   { "date": "2026-07-15", "text": "Weight and amount fields no longer show up on events that don't use them (e.g. editing a pee)" },
   { "date": "2026-07-15", "text": "The date in the top bar is shorter (no year), so the whole bar fits on smaller iPhones" },
   { "date": "2026-07-13", "text": "The big timer is back at the top — scroll past it and it hops into the frozen bar instead" },