Add NEW badge for recent listings, text input for price filter, cleanup

- New listings (≤1 day) show yellow NEW badge instead of oversized marker
- Price filter changed from dropdown to text input (max 14M)
- Cap price filter at 14M in JS
- Remove unused regen_map.py
- Remove unused HTMLParser import in scrape_idnes.py

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

scrape_idnes.py

@@ -15,7 +15,6 @@ import re
 import time
 import urllib.request
 import urllib.parse
-from html.parser import HTMLParser
 from pathlib import Path
 from scraper_stats import write_stats