bug(operator): MCPGroup SERVERS printer column ignores remoteProxies

[RaviTharuma]

Bug description

kubectl get mcpgroups prints a SERVERS column from .status.serverCount. That field only counts MCPServer members.

A group that contains only MCPRemoteProxy objects (or a mix) looks empty / wrong:

• status.remoteProxyCount / status.remoteProxies are populated
• status.serverCount / status.servers are unset
• the table column therefore shows a blank SERVERS value

Operators then think the group has no members, even though vMCP discovery and the CR status both know about the proxies.

Steps to reproduce

1. Create an MCPGroup (empty spec is enough).
2. Create one or more MCPRemoteProxy objects with spec.groupRef.name pointing at that group. Do not add any MCPServer.
3. Wait until the group is Ready.

kubectl get mcpgroup <name> -n <ns>
kubectl get mcpgroup <name> -n <ns> -o jsonpath='{.status}' ; echo

Expected behavior

The default table should show how many members the group actually has.

Either:

• SERVERS = serverCount + remoteProxyCount (and document that), or
• add a PROXIES / MEMBERS printer column, or
• always set serverCount to the total member count (and keep the typed lists separate).

Actual behavior

CRD printer columns (v1beta1):

Servers  .status.serverCount
Phase    .status.phase
Checked  .status.conditions[?(@.type=='MCPServersChecked')].status
Age      .metadata.creationTimestamp

Observed status on a proxy-only group:

serverCount: <unset>
remoteProxyCount: 3
remoteProxies: [proxy-a, proxy-b, proxy-c]
servers: <unset>
phase: Ready

kubectl get mcpgroups shows SERVERS blank for that group, and a non-zero count only for groups that own MCPServer objects.

Environment (if relevant)

• OS/version: Talos Linux, Kubernetes
• ToolHive version: operator v0.43.0 (CRDs from the same chart)

Additional context

MCPServersChecked is True and the message says it listed MCPServers, MCPRemoteProxies, and MCPServerEntries — so the controller already walks proxies. Only the printer column / serverCount field lags behind.

Related (closed): #4617 (Ready column used the wrong condition), #4541 (Ready column on MCPRemoteProxy).

No credentials or private hostnames in this report.