chore(mcp): keep X-MCP-Pretty out of the repo's own client config

The per-client opt-in stays available on the server; this repo's .mcp.json no longer sets it,
so operator sessions run compact too and pay no indentation tokens. Set the header in your own
client config when you need to read raw results.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

.mcp.json

@@ -2,10 +2,7 @@
   "mcpServers": {
     "autopilot-monitor": {
       "type": "http",
-      "url": "https://mcp.autopilotmonitor.com/mcp",
-      "headers": {
-        "X-MCP-Pretty": "1"
-      }
+      "url": "https://mcp.autopilotmonitor.com/mcp"
     },
     "playwright": {
       "command": "cmd",