v0.5.1

• PROPERTY_DB with a non-redis URI scheme is now a configuration error
  instead of a directory named after the scheme. Only an exact redis://
  prefix was recognised, so a rediss:// typo — or any other scheme — fell
  through to FilesystemCorpus and silently wrote the corpus to a directory
  nobody reads, exactly the "silent fall back to the filesystem" the design
  forbids. Scheme matching is now case-insensitive (Redis:// is a shared
  corpus) and the error names the scheme but not the DSN, which may carry
  credentials. A path with no scheme is unchanged.