fix(control-units): list zimage controlnets under 'all'; fix LLLite output-block fall-through

api_list_models omitted the 'or model_type == all' clause for zimage, so ZImage ControlNets never appeared in the all listing - added it to match every other family. lite_model used pass for the unimplemented root==output branch, which fell through to b = getattr(b, attn_name) with b unbound or stale from a prior iteration (UnboundLocalError or wrong-block patch); use continue to skip it.

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

modules/control/units/lite_model.py

@@ -171,7 +171,7 @@ class ControlNetLLLite(torch.nn.Module): # pylint: disable=abstract-method
                 mapped_block, mapped_number = map_down_lllite_to_unet[int(block)]
                 b = model.down_blocks[mapped_block].attentions[int(mapped_number)].transformer_blocks[int(block_number)]
             elif root == 'output':
-                pass # not implemented
+                continue # not implemented
             else:
                 b = model.mid_block.attentions[0].transformer_blocks[int(block_number)]
             b = getattr(b, attn_name, None)