Fix Woonin parser zero-results dedup issue

[wtfloris]

Summary

• build Woonin address from straat + huisnummer when needed
• filter unavailable Woonin statuses more defensively
• skip project listings without a house number in the address
• harden Woonin price parsing
• add parser tests for split house number + unavailable/project filtering

Validation

• .venv/bin/python3 -m pytest tests/test_parsers.py -k woonin -q (4 passed)
• rebuilt dev stack: bash build.sh dev -y
• enabled target woonin in dev DB (id=162)
• manual scrape run in dev: docker exec hestia-scraper-dev python3 hestia/scraper.py
• DB verification: 17 woonin rows inserted at 2026-02-22 10:32:05+00