Fix/disable multi resource select

[n3xta]

Summary of Changes

#1366

Note on the changes: the calendar do have built-in selection parameters but it's for calendar time-slot selection, not for this sidebar resource checklist.

Our code already uses FullCalendar built-ins, the room picker itself is custom MUI UI logic, so FullCalendar can gate drag/select behavior on the grid. It does not natively control this checklist’s single vs multi resource selection state.

Checklist

• I linked relevant issue(s) in the Development section
• I checked for existing implementations and confirmed there is no duplication
• I thoroughly tested this feature locally
• I added or updated unit tests (or explained why not in the PR description)
• I attached screenshots or a video demonstrating the feature (or explained why not in the PR description)
• I incorporated Copilot's feedback (or explained why not in the PR description), and marked conversations as resolved
• I confirmed my PR passed all unit and end-to-end (E2E) tests
• I confirmed there are no conflicts
• I requested a code review from at least one other teammate

Screenshots / Video

Screen.Recording.2026-04-06.at.21.51.16.mov

[Copilot]

Pull request overview

Adds tenant-controlled configuration to disable multi-resource selection in the booking sidebar room checklist (per #1366), including UI plumbing in the schema editor and default schema values.

Changes:

• Introduces calendarConfig.multipleResourceSelect in the tenant schema (default false).
• Updates the booking SelectRooms component to enforce single-resource selection when disabled (and adjusts UI cues).
• Adds unit coverage for SelectRooms behavior under both config modes and updates test tenant schema helpers.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
booking-app/components/src/client/routes/booking/components/SelectRooms.tsx	Enforces/visualizes single- vs multi-select based on calendarConfig.multipleResourceSelect.
booking-app/components/src/client/routes/components/SchemaProvider.tsx	Extends schema typing and sets default for multipleResourceSelect.
booking-app/components/src/client/routes/super/schemaEditor.tsx	Adds schema editor toggle for calendarConfig.multipleResourceSelect.
booking-app/components/src/testHelpers/testTenantSchemas.ts	Updates test tenant schema defaults to include multipleResourceSelect: false.
booking-app/tests/unit/SelectRooms.multipleResourceSelect.unit.test.tsx	New unit tests validating selection behavior for both config states.

Comments suppressed due to low confidence (1)

booking-app/components/src/client/routes/booking/components/SelectRooms.tsx:176

• In single-select mode the component still renders a MUI Checkbox (screen reader role: checkbox) but swaps in radio-style icons. This can be confusing for assistive tech and keyboard expectations; if the intent is single-select, consider using Radio/RadioGroup (or otherwise keep checkbox visuals/semantics aligned with behavior).

                checkedIcon={
                  allowMultipleResourceSelect ? undefined : <CheckCircleIcon />
                }
                inputProps={{
                  "aria-label": `${room.roomId} ${room.name}`,
                }}
                data-testid={`room-option-${room.roomId}`}
                disabled={disabled}
              />
            }
            label={`${room.roomId} ${room.name}`}
            key={room.name}

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[n3xta]

Didn't commit copilot's review: UX choice. I've thought of this but this will increase user's chance of accidentally losing their selected time slots and will have to do it again.

[rlho]

LGTM!
@n3xta (cc: @nopivnick)
The default is false, so please remember to set this value to true in prod schema before the prod release.