feat: expand dbt models

dbt/models/marts/funda_listings.sql

@@ -0,0 +1,69 @@
+-- Mart: analysis-ready Funda listings table.
+-- Selects the most useful fields and adds derived metrics.
+
+with enriched as (
+    select * from {{ ref('int_funda_listings_enriched') }}
+),
+
+final as (
+    select
+        -- identifiers
+        global_id,
+        tiny_id,
+        url,
+
+        -- location
+        title,
+        city,
+        postcode,
+        province,
+        neighbourhood,
+        municipality,
+        latitude,
+        longitude,
+
+        -- property characteristics
+        object_type,
+        house_type,
+        offering_type,
+        construction_type,
+        construction_year,
+        energy_label,
+        living_area,
+        plot_area,
+        bedrooms,
+        rooms,
+        has_garden,
+        has_balcony,
+        has_solar_panels,
+        has_heat_pump,
+        has_roof_terrace,
+        is_energy_efficient,
+        is_monument,
+
+        -- pricing
+        price as current_price,
+        latest_asking_price,
+        latest_asking_date,
+        sold_price,
+        sold_date,
+        is_sold,
+
+        -- derived
+        photo_count,
+
+        -- engagement
+        views,
+        saves,
+        status,
+
+        -- meta
+        publication_date,
+        ingested_at,
+        case
+            when living_area > 0 then round(price::numeric / living_area, 0)
+        end as price_per_sqm
+    from enriched
+)
+
+select * from final