## Summary
Extracts desktop UI into apps/desktop-ui package with minimal changes.
## Changes
- **What**:
- Separates desktop-specific code into standalone package with
independent Vite config, router, and i18n
- Drastically simplifies the main app router by removing all desktop
routes
- Adds a some code duplication, most due to the existing design
- Some duplication can be refactored to be *simpler* on either side - no
need to split things by `isElectron()`
- Rudimentary storybook support has been added
- **Breaking**: Stacked PR for publishing must be merged before this PR
makes it to stable core (but publishing _could_ be done manually)
- #5915
- **Dependencies**: Takes full advantage of pnpm catalog. No additional
dependencies added.
## Review Focus
- Should be no changes to normal frontend operation
- Scripts added to root package.json are acceptable
- The duplication in this PR is copied as is, wherever possible. Any
corrections or fix-ups beyond the scope of simply migrating the
functionality as-is, can be addressed in later PRs. That said, if any
changes are made, it instantly becomes more difficult to separate the
duplicated code out into a shared utility.
- Tracking issue to address concerns: #5925
### i18n
Fixing i18n is out of scope for this PR. It is a larger task that we
should consider carefully and implement properly. Attempting to isolate
the desktop i18n and duplicate the _current_ localisation scripts would
be wasted energy.
* knip: Don't ignore exports that are only used within a given file
* knip: More pruning after rebase
* knip: Vite plugin config fix
* knip: vitest plugin config
* knip: Playwright config, remove unnecessary ignores.
* knip: Simplify project file enumeration.
* knip: simplify the config file patterns ?(.optional_segment)
* knip: tailwind v4 fix
* knip: A little more, explain some of the deps.
Should be good for this PR.
* knip: remove unused disabling of classMembers.
It's opt-in, which we should probably do.
* knip: floating comments
We should probably delete _one_ of these parallell trees, right?
* knip: Add additional entrypoints
* knip: Restore UserData that's exposed via the types for now.
* knip: Add as an entry file even though knip says it's not necessary.
* knip: re-export functions used by nodes (h/t @christian-byrne)
