feat: add runtime diagnostics and path management

src/coinhunter/logger.py

@@ -3,10 +3,10 @@
 import json
 import traceback
 from datetime import datetime, timezone, timedelta
-from pathlib import Path
 
-BASE_DIR = Path.home() / ".coinhunter"
-LOG_DIR = BASE_DIR / "logs"
+from .runtime import get_runtime_paths
+
+LOG_DIR = get_runtime_paths().logs_dir
 SCHEMA_VERSION = 2
 
 CST = timezone(timedelta(hours=8))