fix(deps): bump dev dependencies to latest

vitest 4.1.5 -> 4.1.6
@vitest/coverage-v8 4.1.5 -> 4.1.6
eslint 10.3.0 -> 10.4.0
typescript-eslint 8.59.2 -> 8.59.3
vite 8.0.12 -> 8.0.13
@types/node 25.6.2 -> 25.8.0
prettier-plugin-svelte 3.5.1 -> 3.5.2
wrangler 4.90.0 -> 4.92.0

Author: kellenmurphy