feat: add article_body to enrichment prompt + render Full Story section in panel

chore: trigger redeploy with NEXT_PUBLIC_API_URL env var

feat: DELETE /signals/{id} endpoint

feat: signal enrichment — Claude fetches article, extracts summary/key points/why it matters/sources

feat: signal detail panel — click any signal to open slide-in with summary, source URL, metadata

fix: clean Signal type, remove all sig.type/sig.source_url references

fix: crash on undefined sig.type - add fallback to 'general_news'

fix: align frontend Signal type to use url/source columns

fix: align signals schema - use url/source columns (not source_url/type)

feat: POST /signals endpoint for seeding and job writes

fix: remove freshness param from web/search, add Brave error logging

fix: use web/search instead of news/search for Brave API; apply trigger_summary migration on startup

feat: POST /crons/{cron_id}/run — trigger any job on demand

feat: in-process cron scheduler — fires user_crons jobs on schedule

feat: streaming chat with markdown rendering (react-markdown + SSE)