chore: fix unused import warnings in qwen3-tts module

- Remove unused import 'IndexOp' in model.rs
- Remove unused import 'DType' in speech_tokenizer.rs
- Add #[allow(dead_code)] to codebook_dim field in RvqCodebook

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2 files changed, 3 insertions, 2 deletions

diff --git a/makima/src/tts/qwen3/model.rs b/makima/src/tts/qwen3/model.rs
index 551893b..8a1e986 100644
--- a/makima/src/tts/qwen3/model.rs
+++ b/makima/src/tts/qwen3/model.rs
@@ -10,7 +10,7 @@
 //! Based on the candle-transformers Qwen2 model architecture,
 //! extended for Qwen3-TTS.
 
-use candle_core::{DType, Device, IndexOp, Module, Result, Tensor, D};
+use candle_core::{DType, Device, Module, Result, Tensor, D};
 use candle_nn::{embedding, linear_no_bias, rms_norm, Embedding, Linear, RmsNorm, VarBuilder};
 
 use super::config::Qwen3LmConfig;
diff --git a/makima/src/tts/qwen3/speech_tokenizer.rs b/makima/src/tts/qwen3/speech_tokenizer.rs
index 752050a..86e00f2 100644
--- a/makima/src/tts/qwen3/speech_tokenizer.rs
+++ b/makima/src/tts/qwen3/speech_tokenizer.rs
@@ -11,7 +11,7 @@
 //! The speech tokenizer is a separate model (~682MB) loaded from
 //! `Qwen/Qwen3-TTS-Tokenizer-12Hz`.
 
-use candle_core::{DType, Device, Module, Result, Tensor, D};
+use candle_core::{Device, Module, Result, Tensor, D};
 use candle_nn::{
     conv1d, embedding, linear_no_bias, Conv1d, Conv1dConfig, Embedding, Linear, VarBuilder,
 };
@@ -259,6 +259,7 @@ impl DecoderBlock {
 pub struct RvqCodebook {
     codebooks: Vec<Embedding>,
     num_codebooks: usize,
+    #[allow(dead_code)]
     codebook_dim: usize,
 }