- IDOR: interrogate without report_id now scoped to user_key (LatestReportForUser); regression test TestInterrogateIDORScoped
- auth: signup/login per-IP rate limit 10/60s (new internal/api/ratelimit.go) + test
- chat unscoped grounding: build caller's own briefing instead of global LatestBriefing
- DailyVolumes: dedupe by bar date (snapshot rows hold 30-day windows) — fixes volume-anomaly skew
- GetDestination: direct (id,user_key) query instead of listing all
- ListRoutines: single LastRunsByRoutine query instead of N+1 RunHistory
- FE: exportMd/ask/HTML/PDF export now surface errors; alerts create clears channels