chore: move the go code into a subfolder

apps/api/cmd/setup/15/03_fe_from_adminapi.sql

@@ -0,0 +1,26 @@
+INSERT INTO projections.failed_events2 (
+    projection_name
+    , instance_id
+    , aggregate_type
+    , aggregate_id
+    , event_creation_date
+    , failed_sequence
+    , failure_count
+    , error
+    , last_failed
+) SELECT 
+    fe.view_name
+    , fe.instance_id
+    , e.aggregate_type
+    , e.aggregate_id
+    , e.created_at
+    , e.sequence
+    , fe.failure_count
+    , fe.err_msg
+    , fe.last_failed
+FROM 
+    adminapi.failed_events fe
+JOIN eventstore.events2 e ON
+    e.instance_id = fe.instance_id 
+    AND e.sequence = fe.failed_sequence 
+ON CONFLICT DO NOTHING;