fix(panel): orchestrator status reflects reachability; drop CEO from the agent roster

- The Orchestrator card showed red 'Stopped' whenever zero agents were
  running, even though the service was healthy (it read total_agents > 0).
  Base Running/Stopped on whether the status query resolves; agent count is
  already shown in its own card.
- The human CEO leaked into the Board agent grid (its record carries
  team=board). Exclude the ceo role from getBoardAgents — the CEO is the
  operator, not a spawnable agent.

panel/src/components/agents/orchestrator-status.tsx

@@ -14,7 +14,10 @@ export function OrchestratorStatusCards({ status, isLoading }: OrchestratorStatu
   const runningCount = status?.by_state?.running || 0;
   const readyCount = status?.by_state?.ready || 0;
   const activeCount = runningCount + readyCount;
-  const isRunning = status && status.total_agents > 0;
+  // The orchestrator service is up whenever its status query resolves — agent
+  // count is shown separately in the cards below. (Previously this read
+  // `total_agents > 0`, so an idle-but-healthy orchestrator showed "Stopped".)
+  const isRunning = status !== undefined;
 
   return (
     <div className="grid gap-4 md:grid-cols-4">

panel/src/lib/agent-definitions.ts

@@ -21,10 +21,13 @@ export interface AgentDefinition {
 export const getBoardAgents = (agents: AgentDefinition[] | undefined | null) =>
   (agents ?? []).filter(
     (a) =>
-      a.team === Team.BOARD ||
-      a.role === AgentRole.HEAD_MARKETING ||
-      a.role === AgentRole.AUDITOR ||
-      a.role === AgentRole.PRODUCT_OWNER
+      // The CEO is the human operator, not a spawnable agent — exclude it even
+      // though its record carries team=board.
+      a.role !== AgentRole.CEO &&
+      (a.team === Team.BOARD ||
+        a.role === AgentRole.HEAD_MARKETING ||
+        a.role === AgentRole.AUDITOR ||
+        a.role === AgentRole.PRODUCT_OWNER)
   );
 
 export const getMainPm = (agents: AgentDefinition[] | undefined | null) =>