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>
## Problem
There was no way to trigger resource warning banners in the dev toolbar,
making it hard to test different warning states (warn/critical,
read-only mode) without manually mocking API responses or waiting for
real exhaustion events.
## Fix
- Adds an ExtraTab extension point to DevToolbar so Studio can inject
custom tabs without coupling the package to app-specific hooks
- Adds a ResourceWarningsTab in Studio with per-type off/warn/crit
toggles for disk IO, CPU, memory, disk space, and auth rate limit
warnings, plus a read-only mode toggle
- Auth rate limit only exposes warn (no crit) since critical is not a
valid API return value
- The tab component is dynamically imported so it stays out of
production bundles, controlled by the same NEXT_PUBLIC_ENVIRONMENT guard
used by the toolbar
## How to test
1. Run Studio locally or open a Vercel preview deployment
2. Open the browser console and run window.devTelemetry() to enable the
toolbar
3. Click the toolbar trigger to open the panel
4. Switch to the "Warnings" tab
5. Toggle any warning type to "Warn" or "Crit" and confirm the banner
appears at the top of the page
6. Toggle read-only mode on and confirm the read-only banner appears
7. Click "Reset to real data" and confirm banners return to their actual
state
8. Confirm the Auth Rate Limit row only has Off and Warn buttons (no
Crit)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* New "Warnings" tab in the developer toolbar (enabled in local and
staging) for managing resource warning banners.
* Per-resource severity overrides (Off / Warning / Critical) with
immediate preview in the toolbar.
* Local "read-only" toggle to simulate read-only mode.
* "Reset to real data" clears overrides, disables the local toggle, and
refreshes server state.
* Tab loads lazily and shows a disabled/loading state if org/project
context is unavailable.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.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?
Some small styling brush ups and experimental for internal telemetry
tools.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Developer toolbar redesigned with compact event/flag lists, “Copy
JSON” per event, and a fixed draggable trigger that snaps and remembers
its position. Toolbar is now available in staging and local
environments.
* **Bug Fixes**
* ConfigCat readiness wait ensures flags load correctly.
* Feature flag loading made resilient so one provider’s failure won’t
block the other.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Sean Oliver <882952+seanoliver@users.noreply.github.com>
## Problem
We need a local-only UI to inspect client and server telemetry events
and override flags during development without touching non-local env
behavior. This work is intended to be shared across Studio, Docs, and
WWW.
## Changes
- Introduced a shared `dev-tools` package with the Dev Telemetry Toolbar
UI, trigger, and provider.
- Wired the toolbar into Studio, Docs, and WWW app shells (local-only
gating).
- Added a local-only `devTelemetry()` opt-in with storage gating and SSE
subscription.
- Wired client PostHog events into a local listener and re-exported
types.
- Added local flag override cookie support in the UI and CODEOWNERS for
the new package.
- Added unit tests covering local/non-local behavior and flag utilities.
## Testing
Manual (local only):
- Start each app locally: `pnpm dev:studio`, `pnpm dev:docs`, `pnpm
dev:www`
- Open the app, run `devTelemetry()` in the browser console
- Click around and confirm both client and server events appear (client
will be page views only)
- Verify feature flag overrides (PostHog + ConfigCat) persist and
restore correctly
- Confirm dismissing the toolbar clears local storage and hides the
trigger
Unblocked by https://github.com/supabase/platform/pull/29172
Resolves GROWTH-591
Demo:
[github.com/user-attachments/assets/60b376db-7440-4ada-82f5-d1bd4af4db3b](https://github.com/user-attachments/assets/60b376db-7440-4ada-82f5-d1bd4af4db3b)
Screenshots:
<img width="1368" height="972" alt="1"
src="https://github.com/user-attachments/assets/d2f20a0c-191f-4118-bb5e-15b25f5a54a9"
/>
<img width="1423" height="790" alt="2"
src="https://github.com/user-attachments/assets/115598e2-7287-49bf-9ed7-71ecc679dee3"
/>
<img width="1433" height="882" alt="3"
src="https://github.com/user-attachments/assets/51f666f2-9efc-410f-baec-378bdee9dbfe"
/>
<img width="608" height="483" alt="4"
src="https://github.com/user-attachments/assets/584d6cf5-1b2f-4cee-9e6a-d55ce2e3bae5"
/>
<img width="628" height="305" alt="5"
src="https://github.com/user-attachments/assets/991a9b39-578a-4565-b110-537a02040a53"
/>
<img width="659" height="447" alt="6"
src="https://github.com/user-attachments/assets/95ef405c-fffa-44af-bf6a-f974b780e3fc"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Developer Toolbar (local only): view client/server telemetry, inspect
events, and manage/override feature flags with persistent overrides,
filtering, and clear/reload.
* Client-side telemetry hooks: surface structured events to dev tooling
for realtime inspection.
* **Bug Fixes**
* Fixed end-of-file newline in shared code.
* **Chores**
* Added dev-tools package, integrated provider and trigger across
Studio, Docs, and marketing sites, and added CODEOWNERS entry.
* **Tests**
* Added comprehensive tests and test setup for the DevToolbar.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Charis Lam <26616127+charislam@users.noreply.github.com>
Gildas Garcia