Initial commit: Tasteby - YouTube restaurant map service

Backend (FastAPI + Oracle ADB), Frontend (Next.js), daemon worker.
Features: channel/video/restaurant management, semantic search,
Google OAuth, user reviews.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/daemon/worker.py

@@ -0,0 +1,37 @@
+"""Daemon worker: periodic channel scan + video processing."""
+
+from __future__ import annotations
+
+import logging
+import time
+
+from core.youtube import scan_all_channels
+from core.pipeline import process_pending
+
+logger = logging.getLogger(__name__)
+
+
+def run_once() -> None:
+    """Single daemon cycle: scan channels then process pending videos."""
+    logger.info("=== Daemon cycle start ===")
+    try:
+        new_count = scan_all_channels()
+        logger.info("Scan complete: %d new videos", new_count)
+    except Exception as e:
+        logger.error("Channel scan failed: %s", e)
+
+    try:
+        rest_count = process_pending(limit=10)
+        logger.info("Processing complete: %d restaurants extracted", rest_count)
+    except Exception as e:
+        logger.error("Video processing failed: %s", e)
+
+    logger.info("=== Daemon cycle end ===")
+
+
+def run_loop(interval: int = 3600) -> None:
+    """Run daemon in a loop with configurable interval (default 1 hour)."""
+    logger.info("Daemon started (interval=%ds)", interval)
+    while True:
+        run_once()
+        time.sleep(interval)