Add host_id to ContainerStatEntry proto for LLM tool routing

The LLM agent needs host_id to call targeted container tools (fetch_logs,
inspect, start/stop/restart). Stats responses only had host name, causing
the LLM to pass the wrong value.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: amir20

internal/cloud/tools_containers.go

@@ -137,6 +137,7 @@ func executeGetRunningContainerStats(hostService ToolHostService, labels contain
 			Id:             c.ID,
 			Name:           c.Name,
 			Host:           resolveHostName(c.Host, hostNames),
+			HostId:         c.Host,
 			CpuPercent:     latest.CPUPercent,
 			MemoryPercent:  latest.MemoryPercent,
 			MemoryUsage:    latest.MemoryUsage,

proto/cloud/cloud.pb.go

@@ -101,6 +101,7 @@ message ContainerStatEntry {
   double memory_usage = 6;
   double max_cpu_5min = 7;
   double max_memory_5min = 8;
+  string host_id = 9;
 }
 
 message ContainerStatsResult {