Add a Help workstation to the medical camp workflow and remove the redundant queues shortcut from the medicine dashboard

Issue Summary

Add a Help workstation to the medical camp workflow and remove the redundant queues shortcut from the medicine dashboard.

Current behavior:

Volunteers cannot be assigned to a Help workstation from attendance deployment.
The camp map does not show a Help workstation tile.
The medicine dashboard includes a floating plus shortcut to /volunteer/queues, which makes queue access feel misplaced inside the medicine-specific dashboard.

Expected behavior:

Help is available as a workstation during attendance assignment.
Volunteers assigned to Help can access /volunteer/queues from the camp map.
Volunteers assigned elsewhere are blocked from entering Help.
The medicine dashboard focuses only on medicine-related actions.

Problem Statement

The camp workflow is missing a dedicated Help area in the workstation map and assignment flow. This affects volunteers and coordinators who need to route support/help desk work through the same station-based access model used by registration, vitals, consultation, medicine, and counselling.

Without a Help station:

Help desk volunteers cannot be assigned through the normal attendance deployment flow.
The map has no visual or navigational entry point for Help.
Queue access is exposed through the medicine dashboard, which mixes medicine operations with general support navigation.

Impact:

Volunteers may navigate through the wrong dashboard to access queues.
Workstation-based access control is inconsistent for Help desk responsibilities.
The medicine dashboard becomes less focused and harder to reason about.

Proposed Solution

Add help as a supported workstation area in the existing attendance assignment and camp map flows.

Approach:

Add Help to the availableAreas list in AttendanceMarker.
Add Help to the availableAreas list in CampMap.
Replace the empty top-right map block with an interactive Help tile.
Route the Help tile to /volunteer/queues when the current user is assigned to help.
Reuse the existing access-denied behavior when the user is assigned elsewhere.
Remove the floating queues shortcut from MedicineDashboardPage.
Update existing tests only; do not add new test files.

Dependencies/blockers:

Backend must accept help as a valid station area for end-to-end assignment.

Test-Driven Development

Acceptance Criteria (Given-When-Then)

Scenario 1: Help station appears during attendance assignment

Given a volunteer attendance entry has been marked successfully
  And the station assignment panel is displayed
 When the available station options are rendered
 Then the Help station is shown
  And Help appears after Counseling in the station list

Scenario 2: Help station can be assigned

Given a volunteer attendance entry has been marked successfully
  And the active camp ID is available
 When the Help station is selected
 Then the assign area API is called with area "help"
  And the selected volunteer user ID is included in the payload

Scenario 3: Assigned Help volunteer can enter Help from camp map

Given the current volunteer is assigned to the Help station
 When the volunteer clicks the Help tile on the camp map
 Then the volunteer is navigated to "/volunteer/queues"

Scenario 4: Volunteer assigned elsewhere cannot enter Help

Given the current volunteer is assigned to Registration
 When the volunteer clicks the Help tile on the camp map
 Then an access denied toast is displayed
  And the volunteer is not navigated to "/volunteer/queues"

Scenario 5: Medicine dashboard no longer exposes queues shortcut

Given a volunteer opens the medicine dashboard
 When the dashboard renders
 Then the floating queues shortcut is not displayed
  And no dashboard button navigates to "/volunteer/queues"

Test Cases

Test ID	Test Description	Precondition	Test Steps	Expected Result	Priority
TC-001	Verify Help appears in attendance station assignment	Entry attendance succeeds	1. Render `AttendanceMarker` in manual mode. 2. Submit a volunteer UUID. 3. Inspect station assignment buttons.	Help is rendered in the station list in the expected order.	High
TC-002	Verify Help station assignment payload	Entry attendance succeeds and camp ID exists	1. Render `AttendanceMarker` in manual mode. 2. Submit a volunteer UUID. 3. Click Help.	`assignArea` is called with `camp_id`, `user_id`, and `area: "help"`.	High
TC-003	Verify assigned Help map navigation	Current area is `help`	1. Render `CampMap` as volunteer. 2. Click Help tile.	Navigation is called with `/volunteer/queues`.	High
TC-004	Verify Help map access denied for other stations	Current area is `registration`	1. Render `CampMap` as volunteer. 2. Click Help tile.	Access denied toast is shown and Help navigation is not called.	High
TC-005	Verify medicine dashboard queues shortcut is removed	Medicine dashboard is rendered	1. Render `MedicineDashboardPage`. 2. Click all rendered buttons. 3. Inspect navigation calls.	No button navigates to `/volunteer/queues`.	Medium
TC-006	Verify medicine action cards still navigate correctly	Medicine dashboard is rendered	1. Click Prescription Queue. 2. Click Medicine Pickup. 3. Click Verify Medicine. 4. Click Medicine List.	Each card navigates to its existing medicine route.	Medium

Unit Test Requirements

Components/Functions to Test:

Module/Component	Function/Hook	Test Cases to Cover
`AttendanceMarker.tsx`	Station assignment rendering	TC-001
`AttendanceMarker.tsx`	`handleAreaAssign`	TC-002
`CampMap.tsx`	Help tile click behavior	TC-003, TC-004
`MedicineDashboardPage.tsx`	Dashboard navigation buttons	TC-005, TC-006

Test Assertions Required:

Renders correctly with initial state
Handles user input correctly
Validates input and shows errors
Calls API with correct payload
Handles loading state
Handles success response
Handles error response
Updates UI state appropriately

Implementation Details

Files to Change

File Path	Action	Purpose
`src/components/AttendanceMarker.tsx`	Modify	Add Help to attendance station assignment and fix hook dependencies.
`src/components/CampMap.tsx`	Modify	Add Help workstation tile and route assigned Help volunteers to queues.
`src/pages/volunteer/MedicineDashboardPage.tsx`	Modify	Remove redundant floating queues shortcut and unused icon import.
`tests/components/AttendanceMarker.exit-mode.test.tsx`	Modify	Cover Help station rendering and assignment payload.
`tests/components/CampMap.test.tsx`	Modify	Cover Help map navigation and access denied behavior.
`tests/volunteers/MedicineDashboardPage.test.tsx`	Modify	Cover removed queues shortcut and existing action card navigation.

Technical Considerations

Reuse the existing station assignment array pattern instead of introducing a new station registry.
Reuse the existing handleAreaClick guard in CampMap.
Preserve existing workstation styling and active/locked visual states.
Keep route behavior local to the Help tile: /volunteer/queues.
No API client changes are required in frontend code.
Backend must support help as a valid station value.

UI/UX Requirements

Help should appear as a normal workstation tile on the camp map.
Help should show the same locked state as other unassigned stations.
Help should show the same active state when assigned.
Medicine dashboard should show only medicine-related action cards.
UI should remain responsive using the existing map grid and dashboard layout patterns.

Mockups/Wireframes:

No mockups provided.

Testing Strategy

Manual Testing

Test Environment:

Browser: Chrome
Viewport: Desktop
User Role: volunteer

Manual Test Steps:

Open the volunteer camp map and confirm the Help station tile is visible.
Assign or mock the current volunteer area as help, then click the Help tile.
Confirm navigation goes to /volunteer/queues.
Assign or mock the current volunteer area as registration, then click the Help tile.
Confirm access is denied and the user does not navigate to queues.
Open /volunteer/medicine-dashboard.
Confirm the floating plus shortcut is not present.
Confirm medicine dashboard action cards still navigate to the expected medicine routes.

Automated Testing

Unit Tests:

Component render tests
User interaction tests
API integration tests
Error handling tests

Integration Tests (if applicable):

Multi-component interaction tests
Route navigation tests

Test Data Requirements

const mockVolunteerCampSignupStatus = {
  camp_id: '42',
  signup: true,
  attendance: true,
};

const mockHelpAreaResponse = {
  current_area: 'help',
};

const mockRegistrationAreaResponse = {
  current_area: 'registration',
};