## Context
`CommandOpenSidePanelPage` (and `openSidePanelPage` in the front
component SDK) could open a record in the side panel, but always landed
on the default tab. This adds an optional `tab` param to the
`ViewRecord` page params so an app command can open a record directly on
a specific tab.
## What changed
- **twenty-sdk**: `OpenSidePanelPageParams` `ViewRecord` variant accepts
an optional `tab` (a page layout tab id). Since
`CommandOpenSidePanelPage` props are `OpenSidePanelPageParams`, the
component picks it up automatically.
- **twenty-front**:
- New `setRecordPageActiveTabId` util resolves the record page layout
for the object (custom layout from the store, or the default layout id)
and presets `activeTabIdComponentState` on the tab list instance
(`${pageLayoutId}-tab-list-${recordId}`), which is shared by the side
panel and the full record page.
- `useOpenRecordInSidePanel` accepts `tab` and presets the active tab
before navigating; it also applies when the record is already open in
the side panel (tab switch only).
- `useFrontComponentExecutionContext` forwards `tab` to the side panel
open, and presets the tab when falling back to full-page navigation
(mobile, or objects that can't open in the side panel).
- **Docs**: mention the optional `tab` id in the
`CommandOpenSidePanelPage` description.
Unknown tab ids are harmless: `PageLayoutTabListEffect` falls back to
the layout's default tab when the preset id doesn't exist in the layout.
Dashboards are skipped since their layout id comes from record data, not
object metadata.
## Tests
- `useOpenRecordInSidePanel`: new test asserting the active tab atom is
preset on the correct tab list instance id.
- `useFrontComponentExecutionContext`: new tests for tab passthrough to
the side panel and tab preset on full-page fallback.
- `npx nx typecheck twenty-front`, `typecheck twenty-sdk`,
`lint:diff-with-main twenty-front`, `lint twenty-sdk` all green.
---
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Code](https://claude.ai/code/session_01VaWY1H9RZqgJkytqZakvZi)_
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