Source registry

Where information of each type tends to live. Used by the bridge to avoid guessing.

communication

source	P(source \| event)	n samples	last seen
messages	80%	28087	2026-06-20T16:43:37.214877
emails	20%	7068	2026-06-20T20:42:26+00:00

source	P(source \| event)	n samples	last seen
transactions	100%	1346	2026-05-11

source	P(source \| event)	n samples	last seen
emails	97%	202	2026-05-12T13:32:24+12:00
messages	3%	6	2026-05-09T12:37:16.779909

source	P(source \| event)	n samples	last seen
calendar_events	100%	65467	2027-02-02 11:00

source	P(source \| event)	n samples	last seen
messages	61%	209	2026-06-20T16:43:37.214877
emails	39%	133	2026-06-20T20:42:26+00:00