fix: wav shape, float dtype check, extract_audio cleanup, NaN duration, HF token for InferenceClient

fix: log gr.Error before re-raising to capture ZeroGPU quota messages

fix: add logging.basicConfig so errors appear in log

fix: reduce GPU duration 180→120s and force wav format for Linux mic recording

fix: force wav format on audio inputs to fix recording on Linux/webm browsers

feat: add microphone source to voice reference audio inputs

fix: disable SSR mode (GRADIO_SSR_MODE env conflicts on HF Spaces)

fix: Gradio 6.x compat — remove info= from Image/Audio/Video, show_download_button→buttons

fix: apply code-review and security-review findings

fix: move theme/css from gr.Blocks() to demo.launch() for Gradio 6.x compatibility