~anthropic/claude-sonnet-latest → B (8:2)

Side B is a real, working feature: it introduces explicit user-initiated Reddit fetch (removing implicit auto-fetch), persists full API payloads via a new EntityImported event with replay support, adds config for API bases/env-based creds, UI wiring, tests (unit + integration), and a fixture. Side A is purely a planning document plus a thin RouteContext wrapper that isn't yet adopted anywhere, offering no functional change or bugfix—mostly aspirational scaffolding.