# 009 — Presets / profiles

## Summary

Implement presets ("profiles") that track parsing/indexing rules (param + metric
declarations) and stored dashboards, so restarting ottyl against a given CLI app
doesn't lose that configuration.

## Scope

- Profile = a named bundle of: param declarations ([001](001-param-declarations.md)),
  metric declarations ([002](002-metric-declarations.md)), and saved dashboards
  ([014](014-dashboards-ui.md), once it exists — can stub the dashboard field until
  then).
- Persisted under the settings storage location from
  [008](008-settings-model.md); settings reference which profile(s) exist / which is
  active.
- On startup, load the active profile's param/metric declarations into the engine
  before ingestion starts (or apply-and-backfill if logs arrive before load
  completes — define the ordering explicitly).
- CRUD for profiles, exposed later via NavMenu UI ([011](011-navmenu-ui.md)).

## Acceptance criteria

- Declaring params/metrics through a profile, restarting the process, and re-running
  the same CLI command reproduces the same bucket derivation without re-declaring
  anything.
- Multiple profiles can exist; switching the active profile changes which
  declarations are loaded on next start.

## Depends on

- [008 — Settings model](008-settings-model.md)
- [002 — Metric declarations](002-metric-declarations.md)