VALID_CONFIG_KEYS moved from config.cjs to config-schema.cjs in the
drift-prevention companion PR. Tests that read config.cjs source text
and checked for key literal includes() now point to the correct file.
Closes#2480
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Add plan bounce feature that allows plans to be refined through an external
script between plan-checker approval and requirements coverage gate. Activated
via --bounce flag or workflow.plan_bounce config. Includes backup/restore
safety (pre-bounce.md), YAML frontmatter validation, and checker re-run on
bounced plans.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
