* test(pipeline): remove adr and project-map test files
* refactor(pipeline): remove DOCS phase from pipeline-status
* test(pipeline): update tests for 6-phase pipeline
* docs(handoff): add handoff and ADR for remove-docs-phase
* docs(handoff): set PR number
* fix(pipeline): parse PR body via json.loads in check_implement
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Co-authored-by: opencode-agent <agent@opencode.local>
