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

app.py

@@ -232,7 +232,7 @@ def _run_echomimic(portrait_img, audio_path: str, width: int, height: int,
 
 
 # ── Phase 1: Generate video endpoint ─────────────────────────────────────────
-@spaces.GPU(duration=180)
+@spaces.GPU(duration=120)
 def generate(portrait_img, input_mode: str, text: str, tts_language: str,
              voice_ref, audio_file, aspect_ratio: str, emotion: float,
              num_steps: int, guidance_scale: float, lang: str,
@@ -283,7 +283,7 @@ def generate(portrait_img, input_mode: str, text: str, tts_language: str,
 
 
 # ── Phase 2: Dubbing endpoint ─────────────────────────────────────────────────
-@spaces.GPU(duration=180)
+@spaces.GPU(duration=120)
 def dub_video(video_input, target_lang: str, voice_ref, emotion: float, lang: str,
               progress=gr.Progress(track_tqdm=True)):