offline_first_cache 0.0.9

An offline-first HTTP client and caching engine for Flutter/Dart with request queuing, GET caching (stale-while-revalidate, tag invalidation), dead-letter handling, and a built-in Queue Inspector UI.

0.0.9

• Structured Logging: Replaced console print calls in core interceptors with configurable OfflineLogger calls.
• Dependency Optimization: Cleaned up unused transitive dependencies and updated package environment constraints.
• Documentation: Fixed installation instructions and added package status badges in README.

0.0.8

• Infinite Loop Fix (Stale-While-Revalidate): Fixed a critical bug where background revalidation requests re-entered the interceptor, causing an infinite GET loop on stale cache entries. Background revalidations are now flagged with _background_revalidate to bypass the cache-hit branch.
• Concurrent Revalidation Deduplication: Background revalidations for the same URL are now deduplicated — multiple rapid GETs against a stale cache entry no longer fire redundant parallel network requests.