# ADR-004: Configuration Bootstrap and Provider Abstraction

Status: Accepted
Date: 2026-07-03

## Context

Configuration must initially come from mock JSON and later from backend API without changing consumers.

## Decision

Introduce configuration provider abstraction behind ConfigService.

- ConfigService is the only configuration entrypoint.
- Consumers depend on typed ConfigService selectors only.
- Provider implementation is swappable:
  - MockBootstrapProvider
  - ApiBootstrapProvider
- Frontend calls GET /bootstrap when API provider is enabled.
- Frontend does not pass tenant id.

## Consequences

Positive:

- Source-agnostic configuration usage.
- Mock-to-backend transition with minimal change surface.

Negative:

- Requires strict prohibition of direct JSON imports in components/services.

## Compliance Requirements

- No code outside ConfigService may load bootstrap JSON.
- No page/widget/component may access configuration files directly.