feat(transform): add three pSEO serving models — city costs, country overview, city pricing
- pseo_city_costs_de: unblocks city-cost-de template (~600 city pages),
joins city_market_profile + planner_defaults, includes camelCase calc
override columns (ratePeak, rateOffPeak, utilTarget, dblCourts, country)
- pseo_country_overview: per-country hub aggregating from pseo_city_costs_de,
includes top_city_slugs/names lists for internal linking
- pseo_city_pricing: per-city pricing pages requiring >= 2 Playtomic venues,
includes P25/P75 price range and occupancy
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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