fix: Update hooks config to new format

Changed hook event name from 'stop' to 'Stop' and restructured
to use the new matcher/hooks array format required by Claude Code.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/settings.json

@@ -1,10 +1,15 @@
 {
   "hooks": {
-    "stop": [
+    "Stop": [
       {
-        "matcher": "",
+        "matcher": {},
+        "hooks": [
+          {
+            "type": "command",
             "command": "if git -C /home/kavren/proxmox-infra status --porcelain | grep -q .; then git -C /home/kavren/proxmox-infra add -A && git -C /home/kavren/proxmox-infra commit -m \"Auto-commit: $(date '+%Y-%m-%d %H:%M') session changes\" && git -C /home/kavren/proxmox-infra push; fi"
           }
         ]
       }
+    ]
+  }
 }