feat(ui): add experimental flag to gate the OIDC self-serve flow #30845

Job	Run time
Check Permissions	6s
Formatting \| Dedupe \| Changeset	1m 2s
Build Packages	1m 20s
Bundle size	36s
Publish with pkg-pr-new	1m 9s
Unit Tests (**)	2m 58s
Static analysis	1m 38s
Unit Tests (**)	3m 6s
Integration Tests (express, chrome)	1m 51s
Integration Tests (generic, chrome)	5m 47s
Integration Tests (ap-flows, chrome)	1m 55s
Integration Tests (tanstack-react-start, chrome)	1m 39s
Integration Tests (sessions:staging, chrome)	2m 39s
Integration Tests (fastify, chrome)	1m 29s
Integration Tests (vue, chrome)	1m 46s
Integration Tests (handshake, chrome)	1m 30s
Integration Tests (react-router, chrome)	1m 41s
Integration Tests (sessions, chrome)	2m 29s
Integration Tests (localhost, chrome)	1m 48s
Integration Tests (custom, chrome)	2m 2s
Integration Tests (electron, chrome)	1m 51s
Integration Tests (hono, chrome)	1m 56s
Integration Tests (handshake:staging, chrome)	1m 20s
Integration Tests (chrome-extension, chrome)	1m 56s
Integration Tests (nuxt, chrome)	2m 2s
Integration Tests (astro, chrome)	2m 35s
Integration Tests (quickstart, chrome, 16)	2m 18s
Integration Tests (billing, chrome)	4m 58s
Integration Tests (quickstart, chrome, 15)	2m 20s
Integration Tests (nextjs, chrome, 15)	6m 5s
Integration Tests (cache-components, chrome, 16)	1m 35s
Integration Tests (nextjs, chrome, 16)	5m 37s
Integration Tests (machine, chrome)	4m 54s
	1h 17m 58s

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