## What kind of change does this PR introduce?
Accessibility / lint hardening (Safari keyboard focus).
## What is the current behavior?
`supabase/require-explicit-tabindex` is `'warn'`. Studio’s ratchet was
at 0 but the rule was still ratcheted; www / docs / design-system still
had raw `<button>` / `role="button"` call sites without an explicit
`tabIndex`.
[DEPR-627](https://linear.app/supabase/issue/DEPR-627) · follow-up to
#47984 / #48040
## What is the new behavior?
- Shared config: `'supabase/require-explicit-tabindex': 'error'`
- Swept www / docs / design-system (+ Studio test fixtures the ratchet
skipped)
- Removed the rule from the Studio ratchet + baselines
## To test
Prefer **Safari**. This PR only adds explicit `tabIndex` to raw
`<button>` / `role="button"` call sites — not links, and not controls
that already go through `Button` from `ui`.
### Marketing (`www`) ([staging
link](https://zone-www-dot-com-git-danny-depr-627-promote-req-7ae43c-supabase.vercel.app/))
- [x] Homepage frameworks / dashboard feature tabs — Tab through each
tab button
- [x] Product pages (e.g. `/auth`, `/database`) — section tab switchers
- [x] Narrow viewport — open the hamburger; Tab through menu buttons
- [x] `/partners/catalog` — filter / view controls
- [x] Blog view toggle (list ↔ grid)
### Docs ([staging
link](https://docs-git-danny-depr-627-promote-require-explici-25e46d-supabase.vercel.app/))
- [x] **Desktop (≥ lg):** top-right **⋯ menu** (hamburger icon) — opens
a dropdown that includes Theme. Not a separate theme button.
- [x] **Mobile (< lg):** top-right **hamburger** opens the sheet; close
(X) is the raw button we tagged. Theme inside the sheet uses
`ThemeToggle` / `DropdownMenuTrigger` from `ui` (already supposed to set
`tabIndex`).
- [x] **Code blocks** — copy / language controls
- [x] **Is this helpful?** — X / check are `Button` from `ui` (should
already Tab). After voting **while signed in**, the follow-up “What went
well?” / “How can we improve?” text button is the raw one we tagged.
- [x] **AI Tools → Copy as Markdown** (right rail on a guide) — this is
the only GuidesSidebar control this PR changed. “On this page” TOC items
are **links**, not covered by this lint.
- [x] **Reference docs** (e.g. JS client reference) — section headers
that expand/collapse in the left nav (`Collapsible.Trigger`)
- [x] **Troubleshooting index** — type in the search field, then Tab to
the **clear (X)** control
### Dashboard (`studio`)
No production UI changes in this PR (tests + lint config only). Quick
Safari smoke that prior tabindex work still holds:
- [x] Project sidebar — Tab through primary nav links
- [x] Settings → General — Tab through inputs / buttons
- [x] Storage → Files — Tab a bucket row / file actions
## Problem
The `_Shadcn_` suffix isn't needed anymore on label component
## Solution
Remove it. No other changes
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Standardized Label usage across the codebase by removing the legacy
alias and using the direct Label export from the UI package
consistently.
* **Documentation**
* Updated component examples and docs to use the standardized Label
component in usage snippets and demos.
<!-- review_stack_entry_start -->
[](https://app.coderabbit.ai/change-stack/supabase/supabase/pull/45986)
<!-- review_stack_entry_end -->
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
This PR migrates the whole monorepo to use Tailwind v4:
- Removed `@tailwindcss/container-queries` plugin since it's included by
default in v4,
- Bump all instances of Tailwind to v4. Made minimal changes to the
shared config to remove non-supported features (`alpha` mentions),
- Migrate all apps to be compatible with v4 configs,
- Fix the `typography.css` import in 3 apps,
- Add missing rules which were included by default in v3,
- Run `pnpm dlx @tailwindcss/upgrade` on all apps, which renames a lot
of classes
- Rename all misnamed classes according to
https://tailwindcss.com/docs/upgrade-guide#renamed-utilities in all
apps.
---------
Co-authored-by: Jordi Enric <jordi.err@gmail.com>
## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.
YES
## What kind of change does this PR introduce?
This adds a component showing a list of AI curated related threads to
the detail thread view.
## What is the current behavior?
This is not available.
## What is the new behavior?
A new component on the thread view.
## Additional context
Add any other context or screenshots.
---------
Co-authored-by: Danny White <3104761+dnywh@users.noreply.github.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Danny White
