feat(prototype): add upload manager and docker ci

- add prototype upload, list, view, and delete api routes
- add prototype manager ui with search, modal, and theme toggle
- add filesystem-backed zip extraction and serving logic
- switch project to pnpm with updated lockfile and tooling
- add multi-stage dockerfile with standalone next.js output
- add github actions to lint, build, and publish docker images

public/vercel.svg

@@ -1 +1,3 @@
-<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000"><path d="m577.3 0 577.4 1000H0z" fill="#fff"/></svg>
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000">
+    <path d="m577.3 0 577.4 1000H0z" fill="#fff"/>
+</svg>