feat: update audit logging function for tracking changes in database

supabase/migrations/20250826160800_improve_logging.sql

@@ -0,0 +1,42 @@
+create or replace function audit.log_audit_changes()
+returns trigger
+language plpgsql
+as $$
+declare
+  current_user_id uuid;
+  current_user_role text;
+begin
+  begin
+    current_user_id := auth.uid();
+    current_user_role := auth.jwt() ->> 'role';
+  end;
+
+  insert into audit.log_entries (
+    schema_name,
+    table_name,
+    record_key,
+    operation,
+    row_data,
+    changed_data,
+    changed_by,
+    changed_by_role
+  )
+  values (
+    tg_table_schema,
+    tg_table_name,
+    case when tg_op in ('DELETE', 'UPDATE') then 
+    COALESCE( to_jsonb(OLD)->>'id',
+              to_jsonb(OLD)->>'user_id',
+              to_jsonb(OLD)->>'account_id' ) 
+      else null 
+    end,
+    tg_op,
+    case when tg_op in ('DELETE', 'UPDATE') then to_jsonb(old) else null end,
+    case when tg_op in ('INSERT', 'UPDATE') then to_jsonb(new) else null end,
+    current_user_id,
+    current_user_role
+  );
+  return null;
+end;
+$$;
+