v0.6.9b1

Fixed

• Browser engine — wrong-tab / cannot call get() concurrently
  Replaced browser.get(url, new_tab=True) with direct cdp.target.create_target(url) to
  guarantee a 1:1 mapping between the created CDP target and the Tab object, eliminating the
  wrong-tab race and the duplicate _listener_task that caused the concurrency assertion.

• Browser engine — _do_fetch tasks leaked on timeout
  Tasks continued running after future.result(timeout=...) raised TimeoutError, holding
  _tab_sem slots and producing "Task was destroyed but it is pending!" on teardown.
  The task is now cancelled directly via loop.call_soon_threadsafe(task.cancel) on timeout.

• Browser engine — "Event loop is closed" log noise
  _chain_future callbacks and call_soon_threadsafe handles firing against a closed loop
  after _reset_browser are now suppressed by a _ClosedLoopFilter on the asyncio and
  concurrent.futures loggers.

• Browser engine — AttributeError: 'NoneType' object has no attribute 'get'
  Snapshotting browser = self._browser at _do_fetch entry prevents _reset_browser
  nulling self._browser mid-execution from reaching browser.get().

• Browser engine — Akamai 403 consuming full 30 s timeout
  _wait_for_status now fast-exits on error page titles (Access Denied, Forbidden, etc.)
  returning 403 immediately. _smart_wait exits early when body length stops growing for 3 s.

• Browser engine — logo.png splash causing wrong-tab on startup
  _splash_url() now returns "about:blank" instead of a file:// URI.

• Proxy relay — orphaned handle() tasks on restart / shutdown
  ProxyRelay.await_closed() now cancels and awaits all live handle() tasks before
  closing the server, replacing the bare server.close() that left tasks running.

• Windows Proactor — InvalidStateError crashing the browser loop thread
  _run_loop wraps loop.run_forever() in try/except asyncio.InvalidStateError;
  the loop exception handler suppresses it as well.

• Temp profiles — uc_* dirs accumulating in %TEMP%
_cleanup_browser_profiles() removes stale nodriver temp dirs on every restart and shutdown.

Changed

• Console — timestamp now styled Fore.YELLOW to match Scrapy's log format.