v0.0.03 — API Playground, Tracking Refactor & Admin Analytics

What's New

API Playground

• Tavily-inspired search playground at /dashboard/playground
• Code generation with syntax highlighting (Python / JavaScript / Shell / Go)
• Per-result preview with clickable video links and thumbs up/down feedback
• Collapsible advanced parameters: ranking mode, filters, max results

Tracking Links Refactor

• Permanent short_id on retrieval_units — search requests no longer write redirect rows
• Redirect URLs built dynamically from current video data (never stale)
• Legacy tracking_links fallback for old links
• query_logs.results_preview for request-level result snapshots

Admin Analytics

• New /admin/analytics page with impression-aware CTR metrics
• Content and creator performance leaderboards
• Search quality views: top queries, empty results, position CTR
• Playground feedback analysis

API Key UX

• Key prefix changed to cerul_ (backwards compatible with cerul_sk_)
• Raw keys stored for later viewing (eye icon reveal, copy full key)
• Default key auto-created on signup
• Last active key cannot be deleted

Dashboard Improvements

• Top nav buttons fixed (no more dark overlay bleed-through)
• Create key dialog rounded corners and proper z-index
• Viewport-fixed playground layout with internal scrolling

Migrations

• 015_playground_feedback — feedback table
• 016_tracking_query_snapshots — permanent short_ids + result snapshots
• 017_query_log_search_surface — API vs playground attribution
• 018_api_key_raw_storage — raw key persistence

Full Changelog: v0.0.02...v0.0.03