If chat.reddit.com sniffing fails, fall through with a placeholder
credential set so the post-monitoring/processor side of the bot
(and the web UI) stay up. Chat features are disabled until the
next successful token refresh.
Also dump diagnostics on sniff timeout: final page URL, every host
the page touched (with request counts + whether any carried an
Authorization header), and a full-page screenshot to data/matrix-debug.png.
This makes the three failure modes (page didn't load / loaded but
never hit Matrix / hit Matrix without auth) distinguishable from logs.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
jjbruntonandClaude Opus 4.7
4a3b44bc87