Stop double-counting agents in the Models panel

The previous logic seeded each provider-default row with the count of
agents whose modelId matched the provider model, then iterated agents
again and incremented that same row. CEOs bound to the provider default
were counted twice. Seed default rows with zero and let the agent loop
populate counts once.

AgentCompany-New/src/renderer/src/pages/settings/ModelsPanel.tsx

@@ -59,15 +59,17 @@ function collectModels(providers: ProviderRecord[], agents: AgentRecord[]): Mode
       providerLabel: provider.label,
       authType: humanAuth(provider.authType),
       model: provider.model,
-      agentCount: agents.filter((agent) => agent.modelProviderId === provider.id && (agent.modelId === provider.model || !agent.modelId)).length,
+      agentCount: 0,
       source: "default",
     });
   }
   for (const agent of agents) {
-    if (!agent.modelProviderId || !agent.modelId) continue;
+    if (!agent.modelProviderId) continue;
     const provider = providers.find((item) => item.id === agent.modelProviderId);
     if (!provider) continue;
-    const key = `${provider.id}::${agent.modelId}`;
+    const effectiveModel = agent.modelId ?? provider.model;
+    if (!effectiveModel) continue;
+    const key = `${provider.id}::${effectiveModel}`;
     const existing = map.get(key);
     if (existing) {
       existing.agentCount += 1;
@@ -77,7 +79,7 @@ function collectModels(providers: ProviderRecord[], agents: AgentRecord[]): Mode
       providerId: provider.id,
       providerLabel: provider.label,
       authType: humanAuth(provider.authType),
-      model: agent.modelId,
+      model: effectiveModel,
       agentCount: 1,
       source: "agent",
     });