Support analog photo dates and correct gallery years

photo-upload/README.md

@@ -136,11 +136,14 @@ Create **Publish to blog**:
    **ISO 8601**. After **End Repeat**, **Combine Text** from **Repeat Results**
    with **New Lines** and save it as **Photo Dates**. This preserves capture
    dates even when Shortcuts strips them from the exported JPEG data.
-5. **Make Archive** from **Shortcut Input**, format **ZIP**. Keep this output in
+5. Add **Ask for Input**, type **Text**, with the prompt **Date Taken (optional;
+   YYYY, YYYY-MM-DD, or ISO timestamp)**. Save its response as **Date Taken**.
+   This is useful for analog scans; leave it blank for digital photos.
+6. **Make Archive** from **Shortcut Input**, format **ZIP**. Keep this output in
    a variable named **Photo Archive**. This packages every selected image into
    one upload; using an image list directly in a File form field can send only
    the first image on some Shortcuts versions.
-6. **Get Contents of URL**: `https://theread.me/api/photos`.
+7. **Get Contents of URL**: `https://theread.me/api/photos`.
    - Method: **POST**.
    - Header: `Authorization` = `Bearer YOUR_TOKEN`.
    - Request Body: **Form**.
@@ -149,8 +152,9 @@ Create **Publish to blog**:
    - `highlight`: type **Text**, value the highlight-name response. Select each
      prompt's specific output variable so the caption and highlight stay separate.
    - `photo_dates`: type **Text**, value **Photo Dates**.
+   - `date_taken`: type **Text**, value **Date Taken**.
    - Do not set Content-Type; Shortcuts supplies the multipart boundary.
-7. Show the actual response and check its `count` against the number of selected
+8. Show the actual response and check its `count` against the number of selected
    images. Only show “Uploaded; publishing” when there is no `error`. Optionally poll the returned `status_url`
    with the same header. `pushed` means “GitHub Actions is building/deploying”;
    only `published` means the deployed site's receipt contains this album.
@@ -167,7 +171,9 @@ Select still photos; videos/Live Photo video components aren't supported. The
 service reads EXIF `DateTimeOriginal` automatically when it is present. Because
 iOS Shortcuts can blank that EXIF field while creating the ZIP, `photo_dates`
 supplies the same Photos-library metadata explicitly, one ISO 8601 value per
-image in archive order. An upload without either source is rejected instead of
+image in archive order. `date_taken` overrides both sources for the whole batch;
+it accepts a year, calendar date, or ISO timestamp and is intended for analog
+photos. An upload without any date source is rejected instead of
 being placed under the upload year. Re-sharing the same images, caption, and
 highlight with dates replaces the earlier undated upload. Captions are plain
 text and optional.