optimize settle API

nginx/lua/luabiz/settle.lua

@@ -88,9 +88,17 @@ end
 local SETTLE = {}
 function SETTLE.run()
   local args = ngx.req.get_uri_args()
+  local t
   for k, v in pairs(args) do
     if k == "total_date" then
-      local t = zx_base:date2time(v)
+      t = zx_base:date2time(v)
+    end
+  end
+
+  if t == nil then
+    t = os.time()
+  end
+
   -- settle features start
   --       node_asb:        run()
   --       node_asbdetail:  run()
@@ -115,8 +123,6 @@ function SETTLE.run()
   node_card:       run(t)
   node_ticket:     run(t)
   tk_sdt:          run(t)
-    end
-  end
 end
 
 return SETTLE