feat: add migrations, test scripts, and utility tools

- Add database migrations (006-028) for face recognition, identity, file_uuid
- Add test scripts for ASR, face, search, processing
- Add portal frontend (Tauri)
- Add config, benchmark, and monitoring utilities
- Add model checkpoints and pretrained model references

test_extract_chunk.py

@@ -0,0 +1,118 @@
+#!/opt/homebrew/bin/python3.11
+"""Test chunk extraction from large video."""
+
+import sys
+import os
+import tempfile
+import subprocess
+import time
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+
+def extract_audio(video_path, audio_path):
+    """Extract audio from video to WAV."""
+    cmd = [
+        "ffmpeg",
+        "-i",
+        video_path,
+        "-vn",
+        "-acodec",
+        "pcm_s16le",
+        "-ar",
+        "16000",
+        "-ac",
+        "1",
+        "-y",
+        audio_path,
+    ]
+    print(f"Extracting audio: {' '.join(cmd[:5])} ...")
+    start = time.time()
+    result = subprocess.run(cmd, capture_output=True)
+    elapsed = time.time() - start
+    print(f"Audio extraction took {elapsed:.1f}s, return code: {result.returncode}")
+    if result.returncode != 0:
+        print(f"stderr: {result.stderr.decode()[:200]}")
+    return result.returncode == 0 and os.path.exists(audio_path)
+
+
+def test_extract_chunk(audio_path, start, duration):
+    """Extract a single chunk."""
+    with tempfile.NamedTemporaryFile(suffix=".wav", delete=False) as f:
+        chunk_path = f.name
+
+    cmd = [
+        "ffmpeg",
+        "-i",
+        audio_path,
+        "-ss",
+        str(start),
+        "-t",
+        str(duration),
+        "-acodec",
+        "pcm_s16le",
+        "-ar",
+        "16000",
+        "-ac",
+        "1",
+        "-y",
+        chunk_path,
+    ]
+    print(f"Extracting chunk {start}-{start + duration}s: {' '.join(cmd[:5])} ...")
+    start_time = time.time()
+    result = subprocess.run(cmd, capture_output=True, timeout=30)
+    elapsed = time.time() - start_time
+    print(f"Chunk extraction took {elapsed:.1f}s, return code: {result.returncode}")
+    if result.returncode != 0:
+        print(f"stderr: {result.stderr.decode()[:500]}")
+
+    success = (
+        result.returncode == 0
+        and os.path.exists(chunk_path)
+        and os.path.getsize(chunk_path) > 0
+    )
+    if success:
+        print(f"Chunk size: {os.path.getsize(chunk_path)} bytes")
+
+    # Clean up
+    if os.path.exists(chunk_path):
+        os.unlink(chunk_path)
+
+    return success
+
+
+def main():
+    video_path = "/Users/accusys/test_video/1636719d-c31f-78ac-f1dd-8ab0b0b36c66.mov"
+    if not os.path.exists(video_path):
+        print(f"Video not found: {video_path}")
+        return
+
+    # First extract audio
+    with tempfile.NamedTemporaryFile(suffix=".wav", delete=False) as f:
+        audio_path = f.name
+
+    try:
+        if not extract_audio(video_path, audio_path):
+            print("Failed to extract audio")
+            return
+
+        print(f"Audio file size: {os.path.getsize(audio_path)} bytes")
+
+        # Test extracting first few chunks
+        for i in range(3):
+            start = i * 60  # 0, 60, 120 seconds
+            success = test_extract_chunk(audio_path, start, 60)
+            if not success:
+                print(f"Chunk extraction failed at start={start}")
+                break
+            else:
+                print(f"Chunk {i} extraction successful\n")
+
+    finally:
+        if os.path.exists(audio_path):
+            os.unlink(audio_path)
+            print(f"Cleaned up audio file")
+
+
+if __name__ == "__main__":
+    main()