chore: move the go code into a subfolder

apps/api/cmd/setup/55.sql

@@ -0,0 +1,22 @@
+INSERT INTO projections.current_states AS cs ( instance_id
+                                             , projection_name
+                                             , last_updated
+                                             , sequence
+                                             , event_date
+                                             , position
+                                             , filter_offset)
+SELECT instance_id
+     , 'projections.execution_handler'
+     , now()
+     , $1
+     , $2
+     , $3
+     , 0
+FROM eventstore.events2 AS e
+WHERE aggregate_type = 'instance'
+  AND event_type = 'instance.added'
+ON CONFLICT (instance_id, projection_name) DO UPDATE SET last_updated  = EXCLUDED.last_updated,
+                                                         sequence      = EXCLUDED.sequence,
+                                                         event_date    = EXCLUDED.event_date,
+                                                         position      = EXCLUDED.position,
+                                                         filter_offset = EXCLUDED.filter_offset;