chore: remove stale planning, QA, and release markdown files
Deleted 46 files that were internal development artifacts:
- PHASE*_COMPLETION_SUMMARY.md (5 files)
- QA_*.md / COMPREHENSIVE_QA_REPORT.md (8 files)
- RELEASE_PLAN*.md / RELEASE_*_SUMMARY.md / RELEASE_*_CHECKLIST.md (8 files)
- CLI_REFACTOR_*.md (3 files)
- V3_*.md (3 files)
- ALL_PHASES_COMPLETION_SUMMARY.md, BUGFIX_SUMMARY.md, DEV_TO_POST.md,
ENHANCEMENT_WORKFLOW_SYSTEM.md, FINAL_STATUS.md, KIMI_QA_FIXES_SUMMARY.md,
TEST_RESULTS_SUMMARY.md, UI_INTEGRATION_GUIDE.md,
UNIFIED_CREATE_IMPLEMENTATION_SUMMARY.md, WEBSITE_HANDOFF_V3.md,
WORKFLOW_ENHANCEMENT_SEQUENTIAL_EXECUTION.md, CLI_OPTIONS_COMPLETE_LIST.md
- docs/COMPREHENSIVE_QA_REPORT.md, docs/FINAL_QA_VERIFICATION.md,
docs/QA_FIXES_*.md, docs/WEEK2_TESTING_GUIDE.md
- .github/ISSUES_TO_CREATE.md, .github/PROJECT_BOARD_SETUP.md,
.github/SETUP_GUIDE.md, .github/SETUP_INSTRUCTIONS.md
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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