A floating, read-only panel that renders the current root-store state
(SessionStore + BigProfileStore) live via the json pipe. Whole thing is
gated by isDevMode() so it never renders or ships in production.
- Observer only — no new store/library/state pattern (PRD prime directive).
- BigProfileStore resolved lazily on first open; its httpResources fetch
eagerly on construction, so we avoid a personal-data fetch on pages that
don't use it.
- bsn masked before render; no persistence/logging/network in the feature.
- maskBsn has a unit spec; UI exercised via a Devtools Storybook story,
per repo convention (no TestBed component tests).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>