web: move context controllers into reactive controller plugins #18923

Job	Run time
lint (bandit)	1m 36s
test-migrations	2m 54s
lint (black)	1m 36s
lint (codespell)	1m 33s
lint (pending-migrations)	1m 48s
lint (ruff)	1m 41s
test-migrations-from-stable - PostgreSQL 12-alpine	14m 18s
test-migrations-from-stable - PostgreSQL 15-alpine	15m 25s
test-migrations-from-stable - PostgreSQL 16-alpine	14m 17s
test-unittest - PostgreSQL 12-alpine	13m 13s
test-unittest - PostgreSQL 15-alpine	13m 30s
test-unittest - PostgreSQL 16-alpine	13m 32s
test-e2e (proxy)	6m 0s
test-integration	11m 27s
test-e2e (oauth)	8m 14s
test-e2e (oauth-oidc)	7m 0s
test-e2e (saml)	7m 6s
test-e2e (ldap)	10m 9s
test-e2e (radius)	5m 43s
test-e2e (flows)	5m 43s
ci-core-mark	0s
build	0s
pr-comment	0s
	2h 36m 45s

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