chore(cli): drop unused imports and orphan lang key

- Remove unused `world` import from ListCommand.js and PlaceCommand.js
  (plan code blocks included it but neither command uses it).
- Delete orphaned `construct.commands.construct.denyorigin` lang key
  from en_US and zh_CN — its sole consumer was the original
  commands/construct.js, which was replaced by ConstructCommand using
  the shared `construct.commands.error.notAPlayer` key.
- Carry the previously-orphaned Chinese translation forward to the
  notAPlayer key in zh_CN.lang.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

packs/BP/scripts/commands/ListCommand.js

@@ -1,4 +1,4 @@
-import { CustomCommandStatus, system, world } from '@minecraft/server';
+import { CustomCommandStatus, system } from '@minecraft/server';
 import { Command } from '../classes/Commands/Command';
 import { structureCollection } from '../classes/Structure/StructureCollection';
 import { commandError } from '../classes/Commands/lib/commandError';