## Problem
- API may return a non-array shape that can crash `getKeys` because of
an hard coded cast
- getting API keys is cumbersome as consumers have to call two functions
## Solution
- consolidate `useAPIKeysQuery` + `getKeys` into a single `useAPIKeys`
hook
- guard `getKeys` so that it doesn't crash if passed a non array value
- update usages
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Refactor**
* Unified how project API keys are retrieved across the studio,
resulting in more consistent loading/error handling and slight
responsiveness improvements when showing keys and related command
snippets. UI and permissions behavior remain unchanged for end users.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->