feat: decoder algorithm (#444)

* init commit

* added license

* fixing linting error

* small tweaks

* pinning transformer version and added missing parameter

* added zipar extra and runtime version check for Janus compatibility

* Co-author

Co-authored-by: Gaspar Rochette <gaspar.rochette@pruna.ai>

* added warning to about transformer version

* ci: retrigger CI

* adde decoder tag

* remove zipar extra

* fixing typo

---------
Co-authored-by: Gaspar Rochette <gaspar.rochette@pruna.ai>

Author: minettekaum

src/pruna/algorithms/base/tags.py

@@ -79,6 +79,10 @@ class AlgorithmTag(Enum):
         "resampler",
         "Resamplers change the shape of image or video latents during generation to speed up inference.",
     )
+    DECODER = (
+        "decoder",
+        "Decoders speed up autoregressive generation by changing their decoding strategy to be more parallelizable.",
+    )
 
     def __init__(self, name: str, description: str):
         """

src/pruna/algorithms/zipar/__init__.py

@@ -0,0 +1,17 @@
+# Copyright 2025 - Pruna AI GmbH. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from pruna.algorithms.zipar.zipar import ZipAR
+
+__all__ = ["ZipAR"]