* Fix the nightly report summaries
* Fix workflow trigger
* Fix advisory regex to handle optional variation selector
Match ℹ with or without the trailing U+FE0F variation selector so advisory counts are reliable regardless of output encoding.
When the full report exceeds GitHub's 65K body limit, the summary
table stays in the discussion/issue body and the verbose skill/agent
output is posted as follow-up comments (split into chunks if needed).
This ensures no output is lost.
