Summary

• Adds PO active listening (paraphrase→clarify→summarize) to Phase 1 and Phase 2 of Step 1
• Step 2: developer now reads ALL backlog .feature files before architecture; removes hollow PO architecture acknowledgement gate
• Step 2: clarifies two discovery sources — project-level discovery.md + per-feature .feature file description
• Step 4 SELF-DECLARE: expands to show the full 21-item checklist (YAGNI×2, KISS×2, DRY×2, SOLID×5, OC×9, Semantic×1); clarifies reviewer audits YES claims only, does not re-audit self-declared failures
• Step 6: adds squash merge note to PR step
• Adds Feature File Structure section explaining the progressive content model
• TODO.md structure: adds full 21-item Self-Declaration block; clarifies Cycle State is Step 4 only
• Removes stale Uncovered @id tags quality gate row (validated by gen-tests, not agents)

Reviewer Notes

Documentation-only change. No code, no tests affected.