## Why
Several production users ended up with **two connections to the same
bank** (or duplicate accounts for the same IBAN) with EnableBanking. The
auto-invalidation we assumed exists only happens on the dedicated
*reconnect* flow, which reuses the same `BankingConnection` row.
`AuthorizationController::store()` always creates a brand-new connection
and never checks for an existing one, so re-adding an already-connected
bank from scratch silently duplicates it.
## What
- In the connect picker, already-connected EnableBanking banks are no
longer **hidden** — they are shown **disabled with a tooltip**: *"You
already have a connection with this bank. Reconnect it."* This both
prevents the duplicate and guides the user to the right action.
- Connections in `pending` state are excluded, so a stale/abandoned
attempt no longer hides a bank forever (a latent bug in the old
hide-based filter).
- The same dialog opened from the **create-account flow**
(`settings/accounts`) received no `connections`, so nothing was
deduplicated there. The user's banking connections are now shared as a
lightweight global Inertia prop (`bankingConnections`) and fed into both
entry points, so they behave identically. As a bonus, crypto providers
(Binance, etc.) are now also de-duplicated in that flow.
## Notes / follow-ups
- Existing dirty data (the ~10 affected users) is intentionally left
as-is per product decision.
- The onboarding inline variant (`connect-account-inline.tsx`) still
hides rather than disables; unifying the two near-duplicate connect
components is a deliberate follow-up.
- No backend guard was added to `store()`; this is UI-level prevention.
A server-side guard is the robust follow-up if needed.
## Tests
- `tests/Feature/InertiaSharedDataTest.php` — new shared prop is present
and shaped correctly.
- `resources/js/components/open-banking/connect-account-dialog.test.tsx`
— `alreadyConnectedBankNames` includes active/error/expired, excludes
pending and non-EnableBanking providers.
6e6433c6ad