chore: move the go code into a subfolder

apps/api/internal/query/saml_sp_by_id.sql

@@ -0,0 +1,19 @@
+select c.instance_id,
+       c.app_id,
+       a.state,
+       c.entity_id,
+       c.metadata,
+       c.metadata_url,
+       a.project_id,
+       p.project_role_assertion,
+       c.login_version,
+       c.login_base_uri
+from projections.apps7_saml_configs c
+         join projections.apps7 a
+              on a.id = c.app_id and a.instance_id = c.instance_id and a.state = 1
+         join projections.projects4 p
+              on p.id = a.project_id and p.instance_id = a.instance_id and p.state = 1
+         join projections.orgs1 o
+              on o.id = p.resource_owner and o.instance_id = c.instance_id and o.org_state = 1
+where c.instance_id = $1
+  and c.entity_id = $2