Rename agent process names from nanoclaw to ghostclaw in logs

Process names in logs now show ghostclaw-{group}-{timestamp} instead of
nanoclaw-{group}-{timestamp}. Internal env vars and .nanoclaw/ state dir
kept for NanoClaw ecosystem compatibility.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ziggy

src/container-runner.ts

@@ -166,7 +166,7 @@ export async function runContainerAgent(
   const agentEntrypoint = getAgentRunnerEntrypoint();
 
   const safeName = group.folder.replace(/[^a-zA-Z0-9-]/g, '-');
-  const processName = `nanoclaw-${safeName}-${Date.now()}`;
+  const processName = `ghostclaw-${safeName}-${Date.now()}`;
 
   // Global memory directory
   const globalDir = path.join(GROUPS_DIR, 'global');