Bug: list object form (min/max/collapsible) breaks UI when used on file-type content entry

[naher94]

Description

When using the object form of list on a file-type content entry, the PagesCMS UI breaks — showing a single blank item instead of rendering the actual data from the file.

Config that breaks

content:
  - name: hours
    label: Hours
    type: file
    path: _data/hours.yml
    list:
      min: 7
      max: 7
      collapsible: true

# Also tried:
list:
  collapsible:
    collapsed: true
    summary: "{fields.day}"

Config that works

content:
  - name: hours
    label: Hours
    type: file
    path: _data/hours.yml
    list: true

Expected behavior

The list should render all 7 entries from the YAML file with min/max locking the count and collapsible allowing items to be collapsed.

Actual behavior

A single blank item is shown instead of the file's actual data. No entries from the YAML are rendered.

Data file (_data/hours.yml)

- day: "Monday"
  abbr: "Mon"
  time: "8am - 5pm"
- day: "Tuesday"
  abbr: "Tue"
  time: "8am - 5pm"
# ... 5 more entries

Notes

• The Zod schema in lib/config-schema.ts defines collapsible as required (no .optional()) when using the object form of list, meaning list: { min: 7, max: 7 } alone is also invalid per schema
• list: true (boolean form) works correctly and renders all entries
• Related issue: #342

Workaround

Use list: true and communicate constraints via field descriptions.