orchestrator: gate freeshard loop behind fs_enabled

_run_with_pebble now only schedules _freeshard_loop when settings.fs_enabled
is true; the Pebble webhook server and worker always run. Logs whether the
loop is enabled or disabled so the container state is visible at startup.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Test Bot

src/clayde/orchestrator.py

@@ -58,7 +58,13 @@ async def worker_task() -> None:
             kb_path=settings.kb_path,
         )
 
-    await asyncio.gather(server.serve(), worker_task(), _freeshard_loop(settings))
+    tasks = [server.serve(), worker_task()]
+    if settings.fs_enabled:
+        log.info("Freeshard loop enabled")
+        tasks.append(_freeshard_loop(settings))
+    else:
+        log.info("Freeshard loop disabled (CLAYDE_FS_ENABLED not set)")
+    await asyncio.gather(*tasks)
 
 
 def run_loop():