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.
## What kind of change does this PR introduce?
UI update that resolves DEPR-114. Also resolves DEPR-113.
## What is the current behavior?
- The breadcrumbs on the file explorer have some rough edges in column
view
- Fancy hide/show behavior
- Hidden tap targets
- `FileExplorerHeader` actions can overflow on the x-axis
- The Navigate button is only shown on hover
- The inline Navigate flow does not work well on smaller screens
## What is the new behavior?
- Column view now shows the same in-explorer breadcrumb trail as list
view
- The active breadcrumb is visually emphasized, while inactive
breadcrumbs remain clickable
- The back affordance now uses a clearer arrow treatment with a stronger
separator from the breadcrumb trail
- The Navigate button is permanently visible and moved to the right-side
action group before Reload
- Navigate now opens a dialog on both desktop and mobile
- Added typed telemetry so we can measure `Navigate` usage before
deciding whether to keep or remove it
- Fixed header overflow by letting the full header contents scroll
horizontally together instead of visibly spilling out
| Before | After |
| --- | --- |
| <img width="947" height="997" alt="Buckets Storage AWS Healthy
Toolshed Supabase"
src="https://github.com/user-attachments/assets/fa53fdd4-954c-4832-bf9b-210b63ae020b"
/> | <img width="947" height="997" alt="Buckets Storage AWS Healthy
Toolshed Supabase"
src="https://github.com/user-attachments/assets/3689a0e5-97d1-4b36-a2dd-7adce23add5d"
/> |
| <img width="864" height="997" alt="Buckets Storage AWS Healthy
Toolshed Supabase"
src="https://github.com/user-attachments/assets/ad559118-205f-40e2-b3c5-97cef462d5f5"
/> | <img width="864" height="997" alt="Buckets Storage AWS Healthy
Toolshed Supabase"
src="https://github.com/user-attachments/assets/9c569b29-7c58-4a33-b809-34d6ed919008"
/> |
## Additional context
Also added a link to the `Buckets` portion of the `PageHeader`
breadcrumb:
```text
Files > Buckets > MyBucketName
```
It goes to the same place as Files because the root Files page lists
buckets, but having both links there feels more ergonomic in practice.
---------
Co-authored-by: Ali Waseem <waseema393@gmail.com>
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
