## Source

`TODO`: "Good lighthouse score"

## Current state

There is no Lighthouse or performance-budget configuration in the repository. The old accessibility notes were removed with `docs/`, so this issue owns the performance budget from scratch.

## Acceptance

- [ ] Run Lighthouse against the deployed preview for the landing page, sign-in, project list and an open editor, on mobile and desktop.
- [ ] Record the baseline scores and the largest remaining costs in the issue.
- [x] Decision: target **95+ performance** on mobile and desktop; CI fails below it.
- [ ] Record the exact budgets (LCP, INP, CLS, total JS) in the repository.
- [ ] Add a command (and CI check, if reliable) that fails when a budget regresses.
- [ ] Fix the regressions until every agreed budget passes, or document a deliberate exception with the reason.
- [ ] Do not duplicate the axe accessibility gate; Lighthouse is for performance here.


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