Handle Planner collection setup states

[callumalpass]

What changed

• render explicit loading, authorization-required, and collection setup-review states
• let users apply reviewed TaskNotes type-pack and Base-view setup before opening Planner
• show the exact setup changes in the existing TaskNotes planning-ledger style
• preserve access to sample tasks and choosing another collection
• add regression coverage for setup-review details

Why

After a successful mdbase authorization, the application session can enter setup_review_required. Planner treated every non-ready state as the generic welcome page, so an authorized user appeared to be stuck instead of being given the required apply action.

Impact

Users can finish provisioning the reviewed TaskNotes setup and continue into Planner. The copy explicitly states that task records, custom types, and unrelated collection settings remain unchanged.

Validation

• pnpm typecheck
• pnpm lint
• pnpm test — 35 tests passed
• pnpm build