Raw byte replacement in _merge_helm_indexes only worked when the upstream
index contained absolute URLs matching base_url. Upstreams like Rancher use
relative URLs (e.g. rancher-2.13.1.tgz), which were left unrewritten,
causing Helm to construct a 404-producing URL against the virtual repo.
Now parses YAML first, then rewrites each entry's urls list:
- relative URL → prepend {proxy_base}/api/v1/remote/{member_name}/
- absolute URL matching base_url → replace prefix with proxy remote path
Repository types now live under dedicated top-level keys instead of a
shared remotes: block distinguished by a type field:
remotes: caching proxy remotes (no type field needed)
virtuals: virtual merged-index repositories
locals: local upload repositories
Routes for local repos move from /api/v1/remote/ to /api/v1/local/.
config.py gains get_virtual_config() and get_local_config() lookups.
Root endpoint now reports all three sections. Drop root conf.d/ (was
an exact duplicate of examples/conf.d-method/).
Reviewed-on: #31
Adds a new virtual repo type that merges indexes from multiple member remotes
of the same package type. Currently supports helm (index.yaml merge with URL
rewriting). Member fetches run in parallel; merged index is Redis-cached at
min(mutable_ttl) across members.
Reviewed-on: #30
unkinben