Enhanced gsd-verifier's anti-pattern detection to catch:
- Hardcoded empty data props (={[]}, ={{}}, ={null})
- 'not available' and 'not yet implemented' placeholder text
- Data stub classification guidance (only flag when value flows
to rendering without a data-fetching path)
Added stub tracking to gsd-executor's summary creation:
- Before writing SUMMARY, scan files for stub patterns
- Document stubs in a '## Known Stubs' section
- Block plan completion if stubs prevent the plan's goal
bc1181f554