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

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>