fix: add wav2vec2 result handling and logging in analyze file processing

app/routes/analyze.py

@@ -407,6 +407,21 @@ async def _analyze_file(
         logger.warning(f"[{request_id}] CLAP failed: {e}")
         warnings.append("clap_analysis_unavailable")
 
+    # Await wav2vec2 (ran in parallel)
+    wav2vec2_result = None
+    try:
+        wav2vec2_result = await wav2vec2_future
+        if wav2vec2_result.available:
+            logger.info(
+                f"[{request_id}] wav2vec2: "
+                f"p_ai={wav2vec2_result.p_ai:.3f}"
+            )
+        else:
+            logger.info(f"[{request_id}] wav2vec2 unavailable: {wav2vec2_result.error}")
+    except Exception as e:
+        logger.warning(f"[{request_id}] wav2vec2 failed: {e}")
+        warnings.append("wav2vec2_unavailable")
+
     # FST detection (Layer 3) — async native
     fst_result = None
     try:
@@ -429,6 +444,7 @@ async def _analyze_file(
         features, vocals,
         clap_result=clap_result,
         fst_result=fst_result,
+        wav2vec2_result=wav2vec2_result,
     )
 
     processing_time = round(time.monotonic() - start_time, 3)