Show clarify_max_attempts in the deployed config

The default is 3 either way. Writing it out means you can see the knob
without reading the Go.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CGeSZxh1DCtRxmFVSYVGvJ

deploy/mavend.json

@@ -43,6 +43,7 @@
     "llm_router": true,
     "query_min_score": 0.55,
     "query_min_margin": 0.008,
+    "clarify_max_attempts": 3,
     "tool_timeout": "30s",
     "tools": [
       { "name": "status",     "cmd": ["systemctl", "status"],         "scope": "homelab", "destructive": false },