chore: enforce config placement

scripts/ac-power.lua

@@ -10,10 +10,6 @@
     Edit the CONFIG table below to match your Home Assistant deployment; the script ignores script-opts files.
 ]]
 
-local mp = require("mp")
-local utils = require("mp.utils")
-local msg = require("mp.msg")
-
 local CONFIG = {
   sensor_id = "sensor.ac_power", -- Home Assistant entity id
   ha_base_url = "http://homeassistant.local:8123",
@@ -35,6 +31,12 @@ local CONFIG = {
   initial_message_duration = 0, -- 0 keeps OSD up until refreshed
 }
 
+-- No edits are required below unless you want to change script behavior.
+
+local mp = require("mp")
+local utils = require("mp.utils")
+local msg = require("mp.msg")
+
 local last_watts
 local last_display_ts = 0
 local last_unit