Sync: EGG LIMIT hard rule + weekly cuisine rotation + scripts

- SKILL.md: add egg-limit hard rule (max 4/meal, one egg-meal/day), cuisine-rotation section
- scripts/pick_cuisine.py: seeded weekly world-cuisine picker (stable per week, no recent repeats)
- scripts/verify_eggs.py: regression guard for the egg cap
- README.md: full project documentation
- .gitignore: exclude cuisine-rotation.json + python caches (live data stays local)

.gitignore

@@ -2,3 +2,8 @@
 # Your current stock and 7-day meal log drift as you eat / the daily job runs.
 inventory.json
 meal-history.json
+# Weekly cuisine pick (regenerated by scripts/pick_cuisine.py; not source).
+cuisine-rotation.json
+# Python caches
+__pycache__/
+scripts/__pycache__/