fix: Repair data pipeline with StatCan CMHC rental data

- Add StatCan CMHC parser to fetch rental data from Statistics Canada API
- Create year spine (2014-2025) as time dimension driver instead of census
- Add CMA-level rental and income intermediate models
- Update mart_neighbourhood_overview to use rental years as base
- Fix neighbourhood_service queries to match dbt schema
- Add CMHC data loading to pipeline script

Data now flows correctly: 158 neighbourhoods × 12 years = 1,896 records
Rent data available 2019-2025, crime data 2014-2024

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

portfolio_app/toronto/services/geometry_service.py

@@ -37,7 +37,7 @@ def get_neighbourhoods_geojson(year: int = 2021) -> dict[str, Any]:
             ST_AsGeoJSON(geometry)::json as geom,
             population,
             livability_score
-        FROM mart_neighbourhood_overview
+        FROM public_marts.mart_neighbourhood_overview
         WHERE year = :year
           AND geometry IS NOT NULL
     """