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.
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Co-authored-by: Jordi Enric <jordi.err@gmail.com>
This PR preps the monorepo for a migration to Tailwind v4:
- Bump all Tailwind dependencies and libraries to the latest possible
version, while still compatible with Tailwind 3.
- Cleans up obsolete Tailwind 3 specific options and configs.
- Cleans up unused CSS files and fixes the CSS imports.
- Migrates all `important` uses in `@apply` lines to using the `!`
prefix.
- Move `typography.css` to the `config` package and import it from the
apps.
- Migrated all occurrences of `flex-grow`, `flex-shrink`,
`overflow-clip` and `overflow-ellipsis` since they're deprecated and
will be removed in Tailwind 4.
- Make the default theme object typesafe in the `ui` package.
- Migrate all `bg-opacity`, `border-opacity`, `ring-opacity` and
`divider-opacity` to the new format where they're declared as part of
the property color.
- Bump and unify all imports of `postcss` dependency.
When the dashboard hits a DB connection timeout, users currently see a
raw error message with no
path forward. This PR adds an inline troubleshooting system that detects
known error types and
surfaces contextual next steps — restart the DB, read the docs, or debug
with AI.
## Changes
- New ErrorDisplay component (packages/ui-patterns) — styled error card
with a title, monospace error
block, optional troubleshooting slot, and a "Contact support" link that
always renders. Accepts
typed supportFormParams to pre-fill the support form.
- Error classification in handleError (data/fetchers.ts) — on every API
error, the message is tested
against ERROR_PATTERNS. If matched, handleError throws a typed subclass
(ConnectionTimeoutError
extends ResponseError) instead of a plain ResponseError. Stack traces
now show the exact error
class. All existing instanceof ResponseError checks continue to work.
- ErrorMatcher component — reads errorType from the thrown class
instance, does an O(1) lookup into
ERROR_MAPPINGS, and renders the matching troubleshooting accordion as
children of ErrorDisplay.
Falls back to plain ErrorDisplay for unclassified errors.
- Connection timeout mapping — first error type wired up, with three
troubleshooting steps: restart
the database, link to the docs, and "Debug with AI" (opens the AI
assistant sidebar with a
pre-filled prompt).
- Telemetry — three new typed events track when the troubleshooter is
shown, when accordion steps are
toggled, and which CTAs are clicked.
## Adding a new error type
1. Add a class to types/api-errors.ts
2. Add { pattern, ErrorClass } to data/error-patterns.ts
3. Create a troubleshooting component in errorMappings/
4. Add an entry to error-mappings.tsx
