[FEATURE]: Option to disable “Allow always” confirmation

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Pretty much duplicate of https://github.com/anomalyco/opencode/issues/19528 which was closed due to stupid "To stay organized issues are automatically closed after 60 days of no activity"

Describe the enhancement you want to request

When selecting "Allow always", the user is presented with this confirmation

This confirmation is helpful for first-time users, but becomes tedious for frequent users.

Request:
Add a setting to disable this confirmation dialog.

Rationale:
For frequent users, this extra step adds unnecessary friction and interrupts workflow.

Note:
I've noticed a UI inconsistency with "Allow always" vs "Always allow". When implementing this, if the new setting includes those words, it might be a good opportunity to make a conscious decision about which order is preferred.