Initial commit: Yodmon Yodeck→Zabbix bridge

- Yodeck API poller (every 10 min, paginated, 310 players)
- SQLite persistence (players + activity logs)
- SNMP v2c agent via net-snmp pass_persist
- Zabbix API auto host creation/update (6.0+)
- Flask web dashboard with live player status and log
- Docker deployment with persistent volume
- dev_server.py for local testing without Docker

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

dev_server.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""
+Local development server for Yodmon.
+
+Runs the web UI and Yodeck polling without Docker or snmpd.
+SNMP is not available in this mode — use Docker for full testing.
+
+Usage:
+    pip install flask requests apscheduler
+    python dev_server.py
+    Open http://localhost:8080
+"""
+import os
+import logging
+
+_HERE = os.path.dirname(os.path.abspath(__file__))
+
+# Override paths/settings before importing app modules.
+# All of these can also be set as real environment variables.
+os.environ.setdefault('DB_PATH', os.path.join(_HERE, 'data', 'yodmon.db'))
+os.environ.setdefault('YODECK_API_TOKEN', 'yodeck:fXQKm1hLvJY88necL3GiLVntpmyNS5BpKp8MpDK8GH2UvCPrg8BeHwpBSQaEtF0q')
+os.environ.setdefault('WEB_PORT', '8080')
+
+# Zabbix sync is optional — leave ZABBIX_URL empty to skip it
+os.environ.setdefault('ZABBIX_URL', '')
+
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s %(levelname)s %(name)s: %(message)s',
+)
+
+from app.config import DB_PATH, WEB_PORT
+from app.database import init_db
+from app.scheduler import start_scheduler
+from app.web import create_app
+
+if __name__ == '__main__':
+    print("=" * 60)
+    print("  Yodmon — dev server")
+    print(f"  DB  : {DB_PATH}")
+    print(f"  URL : http://localhost:{WEB_PORT}")
+    print("  SNMP: not available (Linux/Docker only)")
+    print("=" * 60)
+    print()
+
+    os.makedirs(os.path.dirname(os.path.abspath(DB_PATH)), exist_ok=True)
+    init_db()
+    start_scheduler()
+
+    app = create_app()
+    app.run(host='127.0.0.1', port=WEB_PORT, use_reloader=False)