CMS-1940: Add pending review subsets

[ayumi-oxd]

Jira Ticket

CMS-1940

Description

• Added "IS review" and "RS review" below "Pending HQ review" and have both indented as a subset of the HQ review
  • Only visible to the approver roles
  • When "Pending HQ review" is checked, both "IS review" and "RS review" is checked
  • When only one "IS review/RS review" is checked, "Pending HQ review" should still be checked

[Copilot]

Pull request overview

Adds “IS review” and “RS review” as approver-only subset filters under “Pending HQ review” on the Submit page, including UI indentation and consistent badge-removal behavior, and wires the filtering logic to season approval flags returned by the API.

Changes:

• Adds approver-only indented status filter options (“IS review”, “RS review”) and parent/child selection rules in the Submit page status MultiSelect.
• Updates filtering logic to support the new subset filters, using informationSvcApproved / reservationSvcApproved.
• Extends /parks API payload to include the approval-flag fields needed by the frontend.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
frontend/src/router/pages/SubmitPage.jsx	Adds approver-only subset status options and enforces parent/child checkbox behavior in the status filter.
frontend/src/lib/submitPageFilters.js	Implements status matching logic for the new subset filters.
frontend/src/constants/seasonStatus.js	Introduces filter-only status constants and adds them to labelByValue.
frontend/src/components/MultiSelect.jsx	Extends onInput to pass metadata and supports indented option rendering.
frontend/src/components/FilterStatus.jsx	Keeps badge removal consistent with the parent/child status selection rules.
backend/routes/api/parks.js	Exposes season approval flags required for subset filtering.

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[duncan-oxd]

Rebasing onto main to resolve a merge conflict I created when I merged #697 👍

[duncan-oxd]

Cool! I realized there's a logical issue with the dual approval process that we might need to go over together and/or check with Amanda, but the UI stuff all looks great.

A few nitpicks about variable names and comments to consider in the meantime 👍

[duncan-oxd]

Looks great! I had one request about changing a .forEach to a .map for clarity, and a note for both of us about rebasing when we merge. Otherwise it looks good!

I think the Sept 24 stuff will be okay to merge later this week 👍