feat(agent): full-width control page, Copy-logs button, quiet HTTP log noise

- Page fills the viewport horizontally (drop the 780px cap).
- Copy button on the Logs card → copies the console (clipboard API on localhost,
  textarea-execCommand fallback), with a brief "Copied" confirmation.
- Silence httpx/httpcore/huggingface_hub/urllib3/filelock/uvicorn.access/
  ultralytics to WARNING so the console shows agent activity (detector loads,
  job errors, autoscale moves) instead of per-request HF-download spam.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa

agent/fc_agent/logbuf.py

@@ -34,7 +34,11 @@ def install(level: int = logging.INFO) -> None:
     root.addHandler(h)
     if root.level == logging.NOTSET or root.level > level:
         root.setLevel(level)
-    # Keep the buffer signal-rich: drop the per-request access spam + ultralytics
-    # banner noise to WARNING.
-    logging.getLogger("uvicorn.access").setLevel(logging.WARNING)
-    logging.getLogger("ultralytics").setLevel(logging.WARNING)
+    # Keep the buffer signal-rich: silence the chatty HTTP/download libs (every
+    # HF model fetch logs per-request) so the console shows agent activity —
+    # detector loads, job errors, autoscale moves — not request spam.
+    for noisy in (
+        "uvicorn.access", "ultralytics", "httpx", "httpcore",
+        "huggingface_hub", "urllib3", "filelock",
+    ):
+        logging.getLogger(noisy).setLevel(logging.WARNING)