Fixes loading/error/refresh-state gaps across the Enable Banking (PSD2) surfaces:
- Delete the dead post-OAuth bank_connected sync flow + 9 orphaned i18n keys.
- Surface fetch failures instead of empty/false-healthy states (settings panel error card, BankSelector non-OK guard, chip hidden on error).
- Stop the full-panel spinner flash on refetch; clear the spinner in finally.
- Client-side sync/backfill timeouts + live elapsed counter with a grace-period unlock so a slow bank can't trap the modal.
- Broadcast a bank-sync signal so the transactions chip refetches after a manual sync.
- Consolidate the import page onto the shared banking panel (also removes the core -> @/extensions import-rule violation) and standardize spinners.
- Surface previously silent chart/fiscal-year fetch failures in the account picker.
- Review fixes: cancellation guard on the deferred bank_error microtask; key the sync-progress dialog per attempt to reset its elapsed timer.
Jakob Wennberg
b10cf2ec23