add scrapers: V&W, ZO Makelaars (Realworks), Roepman (JSON-LD) for Delft

- fetch_vwmakelaars, fetch_zomakelaars: one-liner Realworks wrappers
- fetch_roepman: custom JSON-LD scraper (Realworks CMS uses div.aanbodEntry
  instead of li.aanbodEntry; price from potentialAction priceSpecification)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_adapters.py

@@ -16,7 +16,7 @@ logging.basicConfig(
 )
 
 # --- change this to test a different adapter ---
-ADAPTER = SCRAPERS['vansilfhout']
+ADAPTER = SCRAPERS['zomakelaars']
 
 if __name__ == "__main__":
     print(f"Testing adapter: {ADAPTER.__name__}")