[claude] Fix 27 ruff lint errors blocking all pushes (#1149) (#1153)

Co-authored-by: Claude (Opus 4.6) <claude@hermes.local>
Co-committed-by: Claude (Opus 4.6) <claude@hermes.local>

src/infrastructure/hermes/__init__.py

@@ -4,6 +4,6 @@ Monitors the local machine (Hermes/M3 Max) for memory pressure, disk usage,
 Ollama model health, zombie processes, and network connectivity.
 """
 
-from infrastructure.hermes.monitor import HermesMonitor, HealthLevel, HealthReport, hermes_monitor
+from infrastructure.hermes.monitor import HealthLevel, HealthReport, HermesMonitor, hermes_monitor
 
 __all__ = ["HermesMonitor", "HealthLevel", "HealthReport", "hermes_monitor"]

src/infrastructure/hermes/monitor.py

@@ -19,11 +19,12 @@ import json
 import logging
 import shutil
 import subprocess
+import tempfile
 import time
 import urllib.request
 from dataclasses import dataclass, field
 from datetime import UTC, datetime
-from enum import Enum
+from enum import StrEnum
 from typing import Any
 
 from config import settings
@@ -31,7 +32,7 @@ from config import settings
 logger = logging.getLogger(__name__)
 
 
-class HealthLevel(str, Enum):
+class HealthLevel(StrEnum):
     """Severity level for a health check result."""
 
     OK = "ok"
@@ -194,8 +195,7 @@ class HermesMonitor:
                     name="memory",
                     level=HealthLevel.CRITICAL,
                     message=(
-                        f"Critical: only {free_gb:.1f}GB free "
-                        f"(threshold: {memory_free_min_gb}GB)"
+                        f"Critical: only {free_gb:.1f}GB free (threshold: {memory_free_min_gb}GB)"
                     ),
                     details=details,
                     needs_human=True,
@@ -302,8 +302,7 @@ class HermesMonitor:
                     name="disk",
                     level=HealthLevel.CRITICAL,
                     message=(
-                        f"Critical: only {free_gb:.1f}GB free "
-                        f"(threshold: {disk_free_min_gb}GB)"
+                        f"Critical: only {free_gb:.1f}GB free (threshold: {disk_free_min_gb}GB)"
                     ),
                     details=details,
                     needs_human=True,
@@ -335,7 +334,7 @@ class HermesMonitor:
         cutoff = time.time() - 86400  # 24 hours ago
 
         try:
-            tmp = Path("/tmp")
+            tmp = Path(tempfile.gettempdir())
             for item in tmp.iterdir():
                 try:
                     stat = item.stat()
@@ -345,11 +344,7 @@ class HermesMonitor:
                         freed_bytes += stat.st_size
                         item.unlink(missing_ok=True)
                     elif item.is_dir():
-                        dir_size = sum(
-                            f.stat().st_size
-                            for f in item.rglob("*")
-                            if f.is_file()
-                        )
+                        dir_size = sum(f.stat().st_size for f in item.rglob("*") if f.is_file())
                         freed_bytes += dir_size
                         shutil.rmtree(str(item), ignore_errors=True)
                 except (PermissionError, OSError):
@@ -392,10 +387,7 @@ class HermesMonitor:
             return CheckResult(
                 name="ollama",
                 level=HealthLevel.OK,
-                message=(
-                    f"Ollama OK — {len(models)} model(s) available, "
-                    f"{len(loaded)} loaded"
-                ),
+                message=(f"Ollama OK — {len(models)} model(s) available, {len(loaded)} loaded"),
                 details={
                     "reachable": True,
                     "model_count": len(models),