Replace the Node prototype (server.mjs) with the stack the merge plan
calls for: Go 1.25, Gin for routing, GORM + MariaDB for persistence.
Same wire contract on /api/sidecar/* so the SvelteKit client doesn't
change.
- Marks move from a JSON file on disk to mule_sidecar.marks (auto-
migrated by GORM on first boot). The Node prototype's marks.json
was dev-only; not migrated.
- Folder/rename/heap-convert/duplicates handlers reproduce the
prototype's behaviour, including the path-traversal defence
(resolveUnderRoot + EvalSymlinks), the size-bucket prefilter for
the duplicate hasher, and the background reindex fire-and-forget
pattern.
- Auth model unchanged: requireSession middleware proxies the
caller's X-Auth-Token to PhotoPrism's /api/v1/photos?count=1
before any destructive op.
- Expose pp-mariadb on 127.0.0.1:3306 in docker-compose so the
host Go process can reach mule_sidecar.* without joining the
container network.
- Archive the Node prototype under sidecar/legacy/server.mjs for
one cycle as reference.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>