[Integrate-2699] Enable cache refreshment for webapi dataset

[hengxian-jiang]

Merge Checklist

Please cross check this list if additions / modifications needs to be done on top of your core changes and tick them off. Reviewer can as well glance through and help the developer if something is missed out.

• Automated Tests (Jasmine integration tests, Unit tests, and/or Performance tests)
• Updated Manual tests / Demo Config
• Documentation (Application guide, Admin guide, Markdown, Readme and/or Wiki)
• Verified that local development environment is working with latest changes (integrated with latest develop branch)
• following best practices in code review doc

[Copilot]

Pull request overview

Adds end-to-end support (UI + backend) for manually refreshing the TrexSQL cache for webapi datasets, and surfaces cache status details in the System Admin dataset UI.

Changes:

• Adds a new “Refresh cache” action in the System Admin dataset action selector, wired to a new RefreshCacheDialog.
• Enhances Source Information to fetch and display cache status (last refreshed / building / no cache) for webapi datasets.
• Adds backend support for POST /system-portal/dataset/:id/refresh-cache and GET /system-portal/dataset/:id/cache-status, including auth routing and Deno tests.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
plugins/ui/apps/portal/src/types/study.ts	Extends action value union to include refresh-cache.
plugins/ui/apps/portal/src/plugins/SystemAdmin/StudyOverview/StudyOverview.tsx	Wires the refresh-cache handler and dialog into Study Overview.
plugins/ui/apps/portal/src/plugins/SystemAdmin/StudyOverview/SourceInformationDialog/SourceInformationDialog.tsx	Fetches and displays cache status for webapi datasets.
plugins/ui/apps/portal/src/plugins/SystemAdmin/StudyOverview/RefreshCacheDialog/RefreshCacheDialog.tsx	New UI dialog to trigger cache refresh.
plugins/ui/apps/portal/src/plugins/SystemAdmin/StudyOverview/RefreshCacheDialog/RefreshCacheDialog.scss	Styles for the new refresh-cache dialog.
plugins/ui/apps/portal/src/plugins/SystemAdmin/StudyOverview/ActionSelector/ActionSelector.tsx	Adds the refresh-cache action option and dispatch handler.
plugins/ui/apps/portal/src/contexts/app-context/states/translation-state.ts	Adds new i18n keys for refresh-cache UI and cache status text.
plugins/ui/apps/portal/src/constant.ts	Enables refresh-cache action for webapi dataset type.
plugins/ui/apps/portal/src/axios/system-portal.ts	Adds client calls for refresh-cache and cache-status endpoints.
plugins/ui/apps/portal/public/translations/zh.json	Adds Chinese translations for new refresh/cache status strings.
plugins/ui/apps/portal/public/translations/de.json	Adds German translations for new refresh/cache status strings.
plugins/functions/portal/src/webapi/webapi-source.service.ts	Adds refreshCache method and passes through lastModified.
plugins/functions/portal/src/webapi/webapi-source.service.test.ts	Adds Deno unit tests for cache status + refresh delegation.
plugins/functions/portal/src/webapi/webapi-source.api.ts	Extends cache-status response typing with lastModified.
plugins/functions/portal/src/dataset/dataset.controller.ts	Adds the refresh-cache endpoint (and existing cache-status route).
plugins/functions/package.json	Adds route auth scope entries for refresh-cache and cache-status.