fix(inverter): restore indentation lost applying a Copilot autofix

604e43a took Copilot's suggestion to reuse is_entity_id() in
is_real_entity_configured(), but the applied patch put the return at
column 0, dedenting it out of the method and making the whole file
unparseable - black and ruff both failed on the syntax error rather
than on anything stylistic.

Restore the indentation and fold the now-unused `value` local into the
return, which ruff's F841 would otherwise flag. The refactor itself was
correct: is_entity_id() is exactly the isinstance/"." test it replaced.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: chalfontchubby

apps/predbat/inverter.py

@@ -313,8 +313,7 @@ def is_real_entity_configured(self, arg):
         values = self.base.args.get(arg)
         if not isinstance(values, list) or self.id >= len(values):
             return False
-        value = values[self.id]
-return is_entity_id(values[self.id])
+        return is_entity_id(values[self.id])
 
     def __init__(self, base, id=0, quiet=False):
         """