When connecting to a real, already-running browser (Chrome 144+) via CDP,
targets may be paused waiting for the debugger after attach. Without an
explicit Runtime.runIfWaitingForDebugger call, page-level commands hang
indefinitely even though the WebSocket connection is live.
Add Runtime.runIfWaitingForDebugger after Runtime.enable in all target
attachment paths: enable_domains (covers initial attach, tab_new,
tab_switch), enable_domains_direct (provider proxies), and the iframe
auto-attach handler. The call is placed before Network.enable to avoid
the documented deadlock when Network.enable precedes the resume. It is
a no-op for targets that are not paused.
Fixes#1130
Co-authored-by: ctate <366502+ctate@users.noreply.github.com>