v1.0.0

Added

• Initial release of the official Ruby client library for the Ipregistry API.
• Client#lookup for single IP address lookups, Client#lookup_origin for origin (requester) lookups returning
  parsed User-Agent data, and Client#batch_lookup for resolving many IP addresses at once. Batch lookups
  transparently split arrays larger than the API's 1024-address limit into concurrently dispatched sub-requests
  (configurable via max_batch_size: and batch_concurrency:) and reassemble results in input order.
• Client#parse_user_agents for parsing raw User-Agent strings into structured data.
• Batch results (BatchResponse) expose per-entry success or failure through Result objects, are Enumerable,
  and support pattern matching.
• Nil-safe response models: nested sections are always present, so chained access such as
  info.location.country.name never raises; boolean fields are exposed as predicates (security.vpn?).
• Optional in-memory caching (Cache::Memory) with LRU eviction and TTL, plus a duck-typed interface for custom
  backends. Caching is disabled by default; origin lookups are never cached and batch lookups reuse cached entries.
• Automatic retries with exponential backoff for transient network errors and 5xx responses, honoring the
  Retry-After header. Retries on 429 Too Many Requests are disabled by default.
• Typed errors rooted at Ipregistry::Error: every documented API error code maps to a dedicated ApiError
  subclass (e.g. InvalidApiKeyError, InsufficientCreditsError), and client-side failures raise
  ConnectionError, TimeoutError, or ParseError.
• Ipregistry.bot? helper to skip lookups for crawler traffic.
• Offline unit/behavior specs using WebMock, plus opt-in live system specs in spec/system (run with
  IPREGISTRY_API_KEY set).
• Zero runtime dependencies (standard library only).