Export votes & comments (CSV/JSON)

Problem: There is no way to export votes or comment data for offline analysis or to import into other tools, which makes prioritization and stakeholder reporting difficult. Proposed solution: Add an export feature on feedback lists and individual posts to download votes and full comment threads as CSV and JSON. Include metadata such as voter email (when allowed), user segment, vote timestamp, comment timestamps, and comment author (or an anonymized ID when privacy settings block emails). Why it matters: Enables product teams to run custom analysis, build reports, archive feedback, and link feedback to customer accounts in a CRM. Acceptance criteria: Export selected feedback posts or all filtered results to CSV & JSON Include votes and full comment threads with timestamps Respect privacy/anonymization settings (emails only when allowed; anonymized IDs otherwise) Export downloadable from both post view and list view Priority: Medium