Fix: [AEA-6327] - missing prescriptions fix

[jonathanwelch1-nhs]

Summary

https://nhsd-jira.digital.nhs.uk/browse/AEA-6327
https://nhsd-jira.digital.nhs.uk/browse/AEA-6276

• Routine Change

Details

Fixed the state that got corrupted when you searched for a prescription and clicked back.
Previously, clicking on View a Prescription altered the saved state which got loaded and rendered on the page. It is now not corrupted and displays the original full search
Also inserts issueNumber=0 which equals to falsy, and so isnt chained on to any endpoint calls when you click back so is more hardy

[github-actions]

This PR is linked to a ticket in an NHS Digital JIRA Project. Here's a handy link to the ticket:

AEA-6327

[Copilot]

Pull request overview

This PR aims to prevent corrupted search state when navigating from the prescriptions list to prescription details and back, and adds explicit UI messaging for session-expiry logout scenarios.

Changes:

• Adds a dedicated “session expired” logged-out view for specific invalidSessionCause values.
• Updates prescriptions list search parameter selection to prefer “original” navigation-captured parameters.
• Refactors prescription list table string constants and adds new/expanded unit tests (including a new PrescriptionListPage test suite).

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
packages/cpt-ui/src/pages/SessionLoggedOut.tsx	Adds a new UI branch for token/session-expired invalid-session causes.
packages/cpt-ui/src/pages/PrescriptionListPage.tsx	Adds navigation-context-based original search parameter handling for list searches.
packages/cpt-ui/src/constants/ui-strings/PrescriptionListTableStrings.ts	Refactors table text keys to uppercase + restructures caption/type labels.
packages/cpt-ui/src/constants/ui-strings/EpsLogoutPageStrings.ts	Adds new strings for the “session expired” logout messaging.
packages/cpt-ui/src/components/prescriptionList/PrescriptionsListTable.tsx	Clears issueNumber on navigation to details + adapts to updated table string keys.
packages/cpt-ui/tests/mocks/AuthStateMock.tsx	Adds a default mockSearchState for SearchProvider context usage in tests.
packages/cpt-ui/tests/SessionLoggedOutPage.test.tsx	Adds test coverage for the new session-expired logged-out view.
packages/cpt-ui/tests/PrescriptionListPage.test.tsx	Introduces a large new test suite for PrescriptionListPage behavior.

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[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
95.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud