Import connectors: Twitter/X, Google Reviews, Product Hunt

[arferreira]

First batch of platform import connectors. Users paste a URL or connect an account, we pull testimonials in.

• Twitter/X: fetch tweet content by URL, extract as testimonial
• Google Reviews: requires Google Business Profile API access
• Product Hunt: scrape or API-based review import

Each connector needs an import_sources entity to track connected platforms and sync state. Auto-sync (periodic re-import) can be a follow-up.