The 09:31 staging card had four ready sections but showed only structural
validation failure. Derive the list copy from section status so a written
pipeline stop is not described as an empty schema miss.
Co-authored-by: Cursor <cursoragent@cursor.com>
Staging personal_full died as report_schema_invalid after the first
chapter blocked. Keep assertWriterOutput, stop treating refs mismatch as
missing evidence, and surface section error codes on the report APIs.
Co-authored-by: Cursor <cursoragent@cursor.com>