## Problem
The `_Shadcn_` suffix isn't needed anymore on `Command` components
## Solution
- Remove the `_Shadcn_` suffix
- Simplify UI package exports
- Apply prettier
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Simplified command component imports and exports across the UI library
by removing internal naming aliases and adopting direct component
references. Updated the public UI package barrel export to use wildcard
re-exports for cleaner API surface.
<!-- review_stack_entry_start -->
[](https://app.coderabbit.ai/change-stack/supabase/supabase/pull/46153?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)
<!-- review_stack_entry_end -->
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Problem
The dashboard renders all timestamps in the browser's local timezone.
When debugging app issues, users often want to see logs and timestamps
in a different timezone (e.g. their app's deployment region) without
changing their OS clock.
## Fix
- New Timezone submenu in the user-avatar dropdown, sitting next to the
existing Theme picker. Search-as-you-type combobox over the full IANA
catalog plus an Auto detect option.
- Selection persists in localStorage (`supabase-ui-timezone`) and
survives `clearLocalStorage()`. No backend schema change.
- New `lib/datetime.tsx` exposes pure timezone-aware formatters
(`formatDateTime`, `formatDate`, `formatTime`, `formatFromNow`,
`toTimezone`) plus a `TimezoneProvider` and matching React hooks
(`useTimezone`, `useFormatDateTime`, ...). The pure functions take `tz`
explicitly so they're easy to unit test (17 vitest cases covering DST
transitions, multi-tz formatting, unix-micro/Date inputs, invalid-tz
fallback).
- The selected timezone propagates to every existing `<TimestampInfo>`
in Studio via a new `TimestampInfoProvider` context exported from
`ui-patterns`. No per-callsite changes needed for those ~20+ surfaces.
- The `UnifiedLogs` date column migrates off `date-fns` to the new
`useFormatDateTime` hook (the rest of the date-fns callers stay as-is,
since they're either internal range math or non-display).
- `ALL_TIMEZONES` (~600 entries) moves out of `PITR.constants.ts` into a
shared `lib/constants/timezones.ts`. PITR keeps a re-export shim so its
callers don't move. New `TIMEZONES_BY_IANA` dedupes the catalog by
primary IANA name (the original list contains both PDT and PST rows for
`America/Los_Angeles`, etc.) and `findTimezoneByIana` provides reverse
lookup.
- Telemetry: `timezone_picker_clicked` PostHog event with
`previousTimezone`, `nextTimezone`, `isAutoDetected` properties.
Notes for reviewers:
- Bare `dayjs(x).format(...)` calls (~157 files) intentionally still
render in browser-local time. Surfaces opt in by switching to the new
wrappers, so this PR is the abstraction plus logs adoption; broader
migration is a follow-up.
- Two `// prettier-ignore` lines (`apps/studio/pages/_app.tsx`,
`apps/studio/components/interfaces/UnifiedLogs/UnifiedLogs.fields.tsx`)
work around a pre-existing local-tooling issue where
`prettier-plugin-sql-cst` strips angle-bracket type arguments under
certain conditions. Project's pinned prettier (3.8.1) does not strip;
the issue surfaces with a globally-installed prettier. Worth tracking
separately.
- Hydration: `guessLocalTimezone()` and `useLocalStorageQuery` are
client-only. Studio is mostly CSR via the Pages Router, but any SSR'd
`<TimestampInfo>` may briefly render in the server's tz before client
hydration. Existing behavior already had this mismatch with `.local()`;
this PR does not regress it.
- Backend timestamps round-tripped through query params and mutations
stay UTC. The picker is display-only.
## How to test
- Run `pnpm dev:studio`, sign in.
- Open the user avatar dropdown (top right). Hover Timezone.
- Search for "tokyo", pick `(UTC+09:00) Osaka, Sapporo, Tokyo`.
- Open any project, navigate to Logs (e.g. `Project > Logs > Edge
Functions`). Hover a log row's timestamp; the popover should show UTC,
the chosen tz (`Asia/Tokyo`), and the relative time. Visible cell text
should be in JST.
- Visit any page that uses `<TimestampInfo>` (Database > Backups,
Project Pause state, Edge Function details). Same tooltip should reflect
Asia/Tokyo.
- Refresh the page; timezone is still Asia/Tokyo.
- Reopen the picker, choose Auto detect; timestamps revert to browser
local.
- Run `pnpm --filter studio test lib/datetime.test.ts`. 17 tests should
pass.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Timezone selector added to the user menu with auto-detect and manual
override
* App-wide timezone provider and hooks plus a shared timezone catalog
for consistent timezone-aware display
* Timestamp components accept an optional timezone prop and respect user
preference (persisted)
* **Bug Fixes / Improvements**
* Logs and timestamp displays now use the new timezone formatting hooks
* **Tests**
* Added comprehensive datetime and timezone catalog tests
* **Telemetry**
* Telemetry event added for timezone picker interactions
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
