chore: remove v22 Svelte scaffolding, add Astro config and new lexicons
Remove old SvelteKit routes, content files, app shell, and vite config. Add astro.config.mjs, new lexicon definitions (rip.nate.post, rip.nate.list). Update deploy workflow, tsconfig, and upload script for Astro/v23.
Parent9f71cd9
50 files changed+2546-1817
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