chore: Upgrade examples to vite@7

[ibgreen]

Summary

This PR upgrades Vite across the repo’s example and test apps to Vite 7 and keeps the change focused on Vite-related compatibility work.

The recent move to Node 22 exposed brittleness in our older Vite setup. Newer Vite majors explicitly support modern Node runtimes, and a repo-wide Vite upgrade was overdue.

What Changed

• Updated tracked example and test app package.json files from Vite 4 to Vite 7.
• Adjusted the shared local Vite config for Vite 7’s stricter module resolution behavior.
• Narrowed the shared @luma.gl and @math.gl aliases so bare package imports still resolve to repo-root dependencies without breaking package export subpaths.

Scope

• This PR is intentionally limited to Vite upgrade work.
• It does not add a Vite resolution.
• It does not intentionally pull in a new luma.gl line or unrelated deck/luma dependency upgrades.
• Any ad hoc changes that relied on newer local luma.gl installs are out of scope for this PR.

Why Now

• Node 22 made the existing Vite setup more brittle and surfaced issues that were easy to miss before.
• The repo has a large surface area of example/test apps still pinned to older Vite versions.
• Keeping Vite current reduces friction for local development and lowers the chance of more Node-version-specific breakage.

Notes

• The root lockfile may still contain older transitive Vite entries through upstream tooling dependencies, but the tracked example/test apps are updated at the package level.
• Follow-up work may still be needed to modernize transitive tooling such as @vis.gl/dev-tools, but that is separate from the package-level Vite upgrade in this PR.

[coveralls]

coverage: 91.066%. remained the same
when pulling 9da5deb on ib/vite7
into a469fb7 on master.