Add gaming deals Matrix bot

Implements a Matrix bot that posts PC gaming deals and free game alerts:
- CheapShark API integration (Steam, GOG, Humble, GMG) polled every 2 hours
- Epic Games Store free games detection polled daily
- IsThereAnyDeal historical low price flagging (optional)
- SQLite deduplication with 30-day pruning
- First-run population (records existing deals without posting)
- Matrix-flavored HTML + plain text fallback messages
- Dockerfile for containerized deployment

https://claude.ai/code/session_01LPpSZFfyh6vdV5HGFWjoQX

gaming_deals_bot/__main__.py

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+"""Entry point — sets up logging, scheduler, and runs the bot."""
+
+import asyncio
+import logging
+import signal
+import sys
+
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+
+from .bot import DealsBot
+from .config import Config
+
+
+def setup_logging():
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
+        stream=sys.stdout,
+    )
+
+
+async def main():
+    setup_logging()
+    logger = logging.getLogger("gaming_deals_bot")
+
+    try:
+        config = Config()
+    except ValueError as exc:
+        logger.error("Configuration error: %s", exc)
+        sys.exit(1)
+
+    bot = DealsBot(config)
+    await bot.start()
+
+    scheduler = AsyncIOScheduler()
+
+    # CheapShark: every 2 hours
+    scheduler.add_job(
+        bot.check_cheapshark,
+        "interval",
+        hours=2,
+        id="cheapshark",
+        name="CheapShark deals check",
+    )
+
+    # Epic free games: once daily
+    scheduler.add_job(
+        bot.check_epic_free_games,
+        "interval",
+        hours=24,
+        id="epic_free",
+        name="Epic free games check",
+    )
+
+    scheduler.start()
+    logger.info("Bot started — scheduler running")
+
+    # Run initial checks immediately (after first-run population is done)
+    await bot.check_cheapshark()
+    await bot.check_epic_free_games()
+
+    # Keep running until signaled to stop
+    stop_event = asyncio.Event()
+
+    def handle_signal():
+        logger.info("Shutdown signal received")
+        stop_event.set()
+
+    loop = asyncio.get_running_loop()
+    for sig in (signal.SIGINT, signal.SIGTERM):
+        loop.add_signal_handler(sig, handle_signal)
+
+    await stop_event.wait()
+
+    logger.info("Shutting down...")
+    scheduler.shutdown(wait=False)
+    await bot.stop()
+    logger.info("Bot stopped")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())