Add example of polymorphic field to Experiments realm #11879

Job	Run time
Check which packages changed	0s
AI bot Tests	50s
Boxel Icons ensure raw icon changes only	1m 16s
Boxel Motion Tests	1m 10s
Boxel UI ensure raw icon changes only	44s
Boxel UI Tests	3m 29s
Boxel Tools VS Code Extension package	2m 18s
Matrix Client Tests (1, 12)	11m 19s
Matrix Client Tests (10, 12)	8m 6s
Matrix Client Tests (11, 12)	9m 8s
Matrix Client Tests (12, 12)	10m 33s
Matrix Client Tests (2, 12)	11m 36s
Matrix Client Tests (3, 12)	10m 40s
Matrix Client Tests (4, 12)	10m 56s
Matrix Client Tests (5, 12)	11m 9s
Matrix Client Tests (6, 12)	11m 1s
Matrix Client Tests (7, 12)	11m 36s
Matrix Client Tests (8, 12)	11m 7s
Realm Server Tests (auth-client-test.ts)	4m 54s
Matrix Client Tests (9, 12)	9m 44s
Realm Server Tests (billing-test.ts)	5m 6s
Realm Server Tests (indexing-test.ts)	5m 58s
Realm Server Tests (index-query-engine-test.ts)	5m 36s
Realm Server Tests (index-writer-test.ts)	5m 19s
Realm Server Tests (loader-test.ts)	5m 27s
Realm Server Tests (module-syntax-test.ts)	5m 14s
Realm Server Tests (queue-test.ts)	5m 3s
Realm Server Tests (realm-endpoints-test.ts)	9m 59s
Realm Server Tests (server-endpoints-test.ts)	7m 14s
Realm Server Tests (virtual-network-test.ts)	4m 58s
Deploy boxel to staging	0s
Merge Matrix reports and publish	55s
	3h 22m 25s

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