feat: add runtime diagnostics and path management

src/coinhunter/rotate_external_gate_log.py

@@ -1,19 +1,21 @@
 #!/usr/bin/env python3
 """Rotate external gate log using the user's logrotate config/state."""
+import shutil
 import subprocess
-from pathlib import Path
 
-BASE_DIR = Path.home() / ".coinhunter"
-STATE_DIR = BASE_DIR / "state"
-LOGROTATE_STATUS = STATE_DIR / "logrotate_external_gate.status"
-LOGROTATE_CONF = BASE_DIR / "logrotate_external_gate.conf"
-LOGS_DIR = BASE_DIR / "logs"
+from .runtime import ensure_runtime_dirs, get_runtime_paths
+
+PATHS = get_runtime_paths()
+STATE_DIR = PATHS.state_dir
+LOGROTATE_STATUS = PATHS.logrotate_status
+LOGROTATE_CONF = PATHS.logrotate_config
+LOGS_DIR = PATHS.logs_dir
 
 
 def main():
-    STATE_DIR.mkdir(parents=True, exist_ok=True)
-    LOGS_DIR.mkdir(parents=True, exist_ok=True)
-    cmd = ["/usr/sbin/logrotate", "-s", str(LOGROTATE_STATUS), str(LOGROTATE_CONF)]
+    ensure_runtime_dirs(PATHS)
+    logrotate_bin = shutil.which("logrotate") or "/usr/sbin/logrotate"
+    cmd = [logrotate_bin, "-s", str(LOGROTATE_STATUS), str(LOGROTATE_CONF)]
     result = subprocess.run(cmd, capture_output=True, text=True)
     if result.stdout.strip():
         print(result.stdout.strip())