Fix people in mcp

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/coredata/migrations/20260102T093953Z.sql

@@ -0,0 +1,5 @@
+UPDATE peoples
+SET additional_email_addresses = ARRAY[]::TEXT[]
+WHERE additional_email_addresses IS NULL;
+
+ALTER TABLE peoples ALTER COLUMN additional_email_addresses SET NOT NULL;