Harden log export CSV and fix profile loader boundary

Load SCIM profile emails via Identities in the export
layer, drop the cross-table join, sanitize formula-leading
cells, and fall back to validated userName when profile email
is missing. Drop redundant gid array casts in LoadByIDs.

Signed-off-by: Cursor Agent <cursoragent@cursor.com>

Co-authored-by: Bryan FRIMIN <bryan@frimin.fr>

pkg/coredata/personal_api_key.go

@@ -320,7 +320,7 @@ SELECT
 FROM
     iam_personal_api_keys
 WHERE
-    id = ANY(@api_key_ids::text[])
+    id = ANY(@api_key_ids)
 `
 
 	args := pgx.StrictNamedArgs{"api_key_ids": apiKeyIDs}