The current Webflow page detection logic only checks for <link> tags containing "website-files.com", which misses many valid Webflow sites that may not have CSS links but still have JavaScript files from the CDN.

This PR enhances the check_url() function to use multiple detection methods:

Before (single indicator):

# Only checked for CSS links
links = soup.find_all('link', href=True)
if not any("website-files.com" in link['href'] for link in links):
    return False  # Site rejected if no CSS links found

After (multiple indicators):

# Check 1: Links with "website-files.com" (existing)
# Check 2: Scripts with "website-files.com" (NEW)
# Check 3: Meta generator tag with "Webflow" (NEW)

Key improvements:

• ✅ Script detection: Now detects <script src="proxy.php?url=https%3A%2F%2Fcdn.prod.website-files.com%2F...%2Fjs%2Fwebflow.%2A.js"> patterns
• ✅ Meta tag fallback: Checks for <meta name="generator" content="Webflow">
• ✅ Backward compatibility: Maintains existing CSS link detection
• ✅ Better logging: Debug output shows which indicators were found

Test scenarios:

• Sites with only JS files: ❌ → ✅ (main issue fixed)
• Sites with CSS + JS: ✅ → ✅ (unchanged)
• Sites with only meta tag: ❌ → ✅ (additional coverage)
• Non-Webflow sites: ❌ → ❌ (correctly rejected)

The enhanced detection makes the tool more robust by checking for any of the three Webflow indicators rather than requiring specific CSS links.

Fixes #11.

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.