Replaces the auto-generated `# minstrel\nMinstrel mobile client`
stub from `flutter create` with a real setup + layout + CI + scope
guide. Pointers to the spec, the M7 sequencing decision (web-first
features ship before Flutter slice 2+), and the per-asset sync
workflow.
iOS + Android targets only; desktop disabled (per spec, Tauri-wrapped
SvelteKit handles desktop in v1.1). Riverpod + dio + just_audio +
audio_service + go_router pinned in pubspec. Smoke test confirms the
ProviderScope wiring boots a Material app.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen