Implement flag metadata #12875

Job	Run time
CLI Integration Tests	4m 50s
Integration Tests (api/sqlite)	5m 36s
UI Integration Tests	5m 53s
Integration Tests (api/libsql)	5m 45s
Integration Tests (api/postgres)	5m 44s
Integration Tests (api/mysql)	5m 49s
Integration Tests (api/cockroach)	5m 34s
Integration Tests (api/cache)	5m 29s
Integration Tests (api/cachetls)	5m 32s
Integration Tests (fs/git)	5m 43s
Integration Tests (fs/local)	5m 47s
Integration Tests (fs/s3)	5m 43s
Integration Tests (fs/oci)	5m 41s
Integration Tests (fs/azblob)	5m 39s
Integration Tests (fs/gcs)	5m 52s
Integration Tests (import/export)	6m 50s
Integration Tests (authn)	6m 32s
Integration Tests (authz)	6m 25s
Integration Tests (rest)	5m 39s
	1h 50m 3s

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