The workspace-app and port preview tabs in the Coder Agents right panel
were gated behind the `agent-app-tabs` deployment experiment. This
removes the experiment entirely and renders the app and port tabs
unconditionally, so the add-panel dropdown, workspace-app tabs, and port
preview tabs are always available alongside terminals.
## Changes
- Remove the `ExperimentAgentAppTabs` constant, its `DisplayName()`
case, and its `ExperimentsKnown` registration in
`codersdk/deployment.go`, then regenerate
`site/src/api/typesGenerated.ts`, `coderd/apidoc/docs.go`,
`coderd/apidoc/swagger.json`, and `docs/reference/api/schemas.md`.
- Drop the frontend experiment gate in `AgentChatPageView.tsx`
(including the now-unused `useDashboard`/`experiments` usage) so
persisted app and port tabs are no longer filtered out.
- Remove the `appExperimentEnabled` prop from `RightPanelAddTabControl`
and render the add-panel dropdown unconditionally; update the stories
accordingly.
This reverses the gating introduced in #26395.
note: the diff is tiny if you hide whitespace changes
Ethan
ac8cda66f7