- TestUploadsMount: key off registers nothing; on, a public blob is served
with its content type and nosniff, HEAD has no body, private, missing,
partition and encoded traversal paths 404, an unpublished bucket or
database 404s, a custom prefix is honoured
- mountUploads refuses a plugin route at or under the prefix, so
BuildRouter fails instead of only an identical pattern failing at
Assemble (README and storage docs updated)
- TestAccessLog: pattern and status for 200, handler 404 and recovered
panic, path only for unmatched requests, locale-prefixed requests keep
the pattern, integer duration_ms, no query, header or Authorization
value, ResponseController flush still works