SSO Success screen, enhancements

[shobhit-cstk]

No description provided.

[Copilot]

Pull request overview

This PR improves the SSO/OAuth user experience (success screen + HTML callback pages) and extends the Contentful migration pipeline to extract/propagate taxonomy metadata into the API/UI mapping flow.

Changes:

• Add OAuth callback HTML success/error pages and SSO org-mismatch handling across API + UI.
• Add Contentful taxonomy extraction/serialization and include taxonomy data in mapper payloads and migration processing.
• Refactor Content Mapper field re-hydration logic (incl. modular blocks) and adjust related dependency/test configs.

Reviewed changes

Copilot reviewed 28 out of 30 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
upload-api/src/services/contentful/index.ts	Runs taxonomy extraction and includes taxonomies in mapper payload to the API.
upload-api/src/config/index.ts	Updates default localPath placeholder.
upload-api/migration-contentful/libs/extractTaxonomy.js	New helper to derive taxonomy schemes from Contentful export metadata and write a schema file.
upload-api/migration-contentful/libs/createInitialMapper.js	Injects taxonomy field rows into the initial mapper based on Contentful content-type metadata.
upload-api/migration-contentful/index.js	Exposes extractTaxonomy from the migration-contentful library.
ui/src/utilities/functions.ts	Adds “persist” option to error toast helper.
ui/src/pages/Login/index.tsx	Adds SSO success screen, improved polling cancellation, and OAuth callback postMessage handling.
ui/src/pages/Login/index.scss	Styles for the SSO success screen.
ui/src/components/ContentMapper/index.tsx	Refactors matching logic (esp. modular blocks) when rehydrating mappings.
api/src/controllers/auth.controller.ts	/save-token now responds with HTML success/error pages (redirect flow) instead of JSON.
api/src/services/auth.service.ts	Validates authorized org, normalizes authorize URL, improves org mismatch messaging.
api/src/utils/oauth-callback-html.utils.ts	New HTML generators for OAuth callback success/error pages (incl. opener notification).
api/src/utils/contentstack-oauth-url.utils.ts	Normalizes hash-style authorize URLs to path-style.
api/src/services/contentful/taxonomy.service.ts	New Contentful taxonomy extraction into migration data layout.
api/src/services/contentful.service.ts	Adds taxonomy assignment handling for entry metadata and wires taxonomy file generation.
api/src/services/migration.service.ts	Calls Contentful taxonomy creation before entry creation in migrations.
api/src/services/contentMapper.service.ts	Adds fallback to read Contentful taxonomies from upload-api’s generated schema file.
api/src/routes/auth.routes.ts	Updates route documentation for OAuth callback.
api/tests/unit/*	Adds/updates unit tests for new OAuth utilities and SSO/org-match behavior.
api/vitest.config.ts	Lowers coverage thresholds slightly.
api/package.json + lockfiles	Dependency and lockfile updates.
app.json	Updates example SSO config values/timestamp.

Files not reviewed (2)

• api/package-lock.json: Language not supported
• upload-api/migration-aem/package-lock.json: Language not supported

Comments suppressed due to low confidence (1)

api/src/routes/auth.routes.ts:49

• The JSDoc @route here says GET /save-token, but this router is mounted under /v2/auth (see src/server.ts), so the actual route is GET /v2/auth/save-token. Please update the comment to reflect the real public path to avoid misleading docs/consumers.

/**
 * OAuth redirect_uri: exchanges code, saves tokens, responds with HTML success page (or HTML error page).
 * @route GET /save-token
 */
router.get(
  "/save-token",
  asyncRouter(authController.saveOAuthToken)

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