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

lib/dayjs.ts

@@ -0,0 +1,6 @@
+import dayjs from "dayjs"
+import duration from "dayjs/plugin/duration"
+
+dayjs.extend(duration)
+
+export default dayjs