Adds an optional plain-language summary and recommended action to every
active insight. A new Oban cron worker runs every 5 minutes, picks up
unenriched insights, and asks the configured LLM to restate the finding
and suggest one specific action grounded in the structured metadata.
- Migration: adds llm_summary, recommended_action, llm_model,
llm_enriched_at columns to preseem_insights
- Towerops.LLM context with swappable behaviour; real client uses Req
with the standard Req.Test plug for test isolation
- MockClient + InsightPrompt module (builds chat messages, parses JSON
with code-fence stripping and a raw-text fallback)
- Worker logs and skips on rate limits / missing key / parse errors so
insights still render without an AI summary when the LLM is unavailable
- Optional towerops-llm k8s secret with example template; deployment.yaml
references it as optional in both init and main containers
- UI renders summary + recommended action callout on /insights and on
the org-level insights page