feat: add MTF pullback bot for OOS dry-run verification

Volume-backed pullback strategy with 1h meta filter (EMA50/200 + ADX)
and 15m 3-candle trigger sequence. Deployed as separate mtf-bot container
alongside existing cointrader. All orders are dry-run (logged only).

- src/mtf_bot.py: Module 1-4 (DataFetcher, MetaFilter, TriggerStrategy, ExecutionManager)
- main_mtf.py: OOS dry-run entry point
- docker-compose.yml: mtf-bot service added
- requirements.txt: ccxt dependency added
- scripts/mtf_backtest.py: backtest script (Phase 1 robustness: SHORT PF≥1.5 in 7/9 combos)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -52,6 +52,22 @@ services:
         max-size: "10m"
         max-file: "3"
 
+  mtf-bot:
+    image: git.gihyeon.com/gihyeon/cointrader:latest
+    container_name: mtf-bot
+    restart: unless-stopped
+    environment:
+      - TZ=Asia/Seoul
+      - PYTHONUNBUFFERED=1
+    volumes:
+      - ./logs:/app/logs
+    entrypoint: ["python", "main_mtf.py"]
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "10m"
+        max-file: "5"
+
   ls-ratio-collector:
     image: git.gihyeon.com/gihyeon/cointrader:latest
     container_name: ls-ratio-collector