segmeng fault

I encoutered segment fault on try run:

```
🍀 LuckyJohn💫 af:qwen-asr/ (main) $ ./qwen_asr -d qwen3-asr-0.6b -i samples/test_speech. [20:34:06]
Loading model from qwen3-asr-0.6b
Detected: Qwen3-ASR-0.6B
Loading encoder weights...
Loading decoder weights...
[1] 24763 segmentation fault ./qwen_asr -d qwen3-asr-0.6b -i samples/test_speech.
🍀 LuckyJohn💫 af:qwen-asr/ (main) $ ./qwen_asr -d qwen3-asr-0.6b -i samples/test_speech.wav [20:34:13]
Loading model from qwen3-asr-0.6b
Detected: Qwen3-ASR-0.6B
Loading encoder weights...
Loading decoder weights...
[1] 24780 segmentation fault ./qwen_asr -d qwen3-asr-0.6b -i samples/test_speech.wav
```

sys info:

```
🍀 LuckyJohn💫 af:qwen-asr/ (main) $ neofetch [20:35:47]
'c. af@AFWs-MacBook-Air.local
,xNMM. -------------------------
.OMMMMo OS: macOS 26.2 25C56 arm64
OMMM0, Host: Mac16,13
.;loddo:' loolloddol;. Kernel: 25.2.0
cKMMMMMMMMMMNWMMMMMMMMMM0: Uptime: 26 days, 21 hours, 33 mins
.KMMMMMMMMMMMMMMMMMMMMMMMWd. Packages: 157 (brew)
XMMMMMMMMMMMMMMMMMMMMMMMX. Shell: zsh 5.9
;MMMMMMMMMMMMMMMMMMMMMMMM: Resolution: 1710x1107
:MMMMMMMMMMMMMMMMMMMMMMMM: DE: Aqua
.MMMMMMMMMMMMMMMMMMMMMMMMX. WM: Quartz Compositor
kMMMMMMMMMMMMMMMMMMMMMMMMWd. WM Theme: Blue (Light)
.XMMMMMMMMMMMMMMMMMMMMMMMMMMk Terminal: iTerm2
.XMMMMMMMMMMMMMMMMMMMMMMMMK. Terminal Font: Ioskeley-Mono 13
kMMMMMMMMMMMMMMMMMMMMMMd CPU: Apple M4
;KMMMMMMMWXXWMMMMMMMk. GPU: Apple M4
.cooc,. .,coo:. Memory: 2278MiB / 16384MiB

```