- Reduce hunger rate to 0.125/tick (~25/day) for ~6-7 day death timeline
- Slow energy drain: idle 0.125, travel 0.5, work 0.5, complete 0.0625/tick
- Use exact binary fractions for all rates to preserve float precision in save/load
- Starving/critically-hungry NPCs always override sleep to seek food first
- Extend starvation death threshold from 20 to 600 ticks (~3 days of starvation)
- Add calligraphy-style wind stroke particles (WindStrokes scene + shader)
- Two wind stroke emitters in valley and ridge for Ghibli atmosphere
- Rework terrain macro-variation colors for vibrant warm-green palette
- Enhance environment: stronger glow/bloom, higher saturation, warmer sky/fog/ambient
