## Context
Opening the Ask AI panel with a FAST model preselection
(`useOpenAskAiPageWithPreprompt`) sets the chat's model to the
workspace's `fastModel`. For every workspace on default settings that
value is the auto-select sentinel `default-fast-model`.
## Bug
`useAgentChatModelId` validates the selected model against the
enabled-models list — and `useWorkspaceAiModelAvailability` deliberately
filters sentinel ids out of that list. The preselection is therefore
silently discarded (`selectedModelId = null`), the request is sent with
no model, and the server falls back to its default — the **smart**
model. Net effect: FAST preselection no-ops on default-configured
workspaces (observed on twenty-internal: a `model: 'FAST'` entry point
ran on gpt-5.6-sol instead of gpt-5.6-luna).
## Fix
Treat auto-select sentinel ids as always available in the check — the
server-side registry already resolves them (`getEffectiveModelConfig` →
`getDefaultSpeedModel`). One line + a regression test.
## Test
`useAgentChatModelId.test.tsx`: new case asserting a sentinel selection
survives to `modelIdForRequest`; all 4 pass.
<!-- This is an auto-generated description by cubic. -->
<a
href="https://cubic.dev/pr/twentyhq/twenty/pull/23854?utm_source=github"
target="_blank" rel="noopener noreferrer"
data-no-image-dialog="true"><picture><source
media="(prefers-color-scheme: dark)"
srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source
media="(prefers-color-scheme: light)"
srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img
alt="Review in cubic"
src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a>
<!-- End of auto-generated description by cubic. -->
Charles Bochet
c7cfd143c7
