feat(plugins): add Rumik AI TTS plugin

Author: Lothnic

livekit-plugins/livekit-plugins-rumik/README.md

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+# Rumik AI plugin for LiveKit Agents
+
+Support for speech synthesis (TTS) with the [Rumik AI](https://rumik.ai/) API.
+
+## Installation
+
+```bash
+pip install livekit-plugins-rumik
+```
+
+## Pre-requisites
+
+You'll need an API key from Rumik AI. It can be set as an environment variable: `RUMIK_API_KEY`
+
+## Usage
+
+### Text-to-Speech
+
+```python
+from livekit.plugins import rumik
+
+# Standard tone-steered TTS (muga)
+tts = rumik.TTS(model="muga")
+
+# Rich instruct-based TTS (mulberry)
+tts = rumik.TTS(
+    model="mulberry",
+    description="warm, upbeat narrator",
+    speaker="speaker_2",
+)
+```

livekit-plugins/livekit-plugins-rumik/livekit/plugins/rumik/__init__.py

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+# Copyright 2026 LiveKit, Inc.
+#
+# 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.
+
+"""Rumik AI plugin for LiveKit Agents
+
+See https://docs.livekit.io/agents/integrations/rumik/ for more information.
+"""
+
+from .tts import TTS as TTS, ChunkedStream as ChunkedStream
+from .version import __version__ as __version__
+
+__all__ = ["TTS", "ChunkedStream", "__version__"]
+
+from livekit.agents import Plugin
+
+
+class RumikPlugin(Plugin):
+    def __init__(self) -> None:
+        super().__init__(__name__, __version__, __package__)
+
+
+Plugin.register_plugin(RumikPlugin())
+
+# Cleanup docs of unexported modules
+_module = dir()
+NOT_IN_ALL = [m for m in _module if m not in __all__]
+
+__pdoc__ = {}
+
+for n in NOT_IN_ALL:
+    __pdoc__[n] = False

livekit-plugins/livekit-plugins-rumik/livekit/plugins/rumik/log.py

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+# Simple logger for the plugin
+import logging
+
+logger = logging.getLogger("livekit.plugins.rumik")

livekit-plugins/livekit-plugins-rumik/livekit/plugins/rumik/models.py

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+from typing import Literal
+
+TTSModels = Literal[
+    "muga",
+    "mulberry",
+]

livekit-plugins/livekit-plugins-rumik/livekit/plugins/rumik/py.typed

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+# Marker file for PEP 561.