URGENT SYNC CHECK - 2025-08-19 15:27:00
HF MUST BUILD FROM COMMIT: f521361 (v0.3.19)
NOT FROM: ab0f9ea (v0.3.18) 

CRITICAL FIX NEEDED: Gradio Audio 'source' parameter removal
Without commit f521361, app will crash with TypeError

Factory rebuild timestamp: 2025-08-19 15:27:00
This file should ONLY exist in commit f521361 or later