Internal Improvements

️ Architecture Changes

• UUID generation: Added flexible UUID generation that uses native crypto.randomUUID when available, falling back to a custom implementation
• Platform detection: Enhanced runtime environment detection (Deno, Edge Runtime, Node.js)
• Text encoding/decoding: Optimized text encoder/decoder instances with caching
• Headers handling: Improved header merging and normalization logic

Security & Privacy

• Sanitized logging: Added utilities to remove sensitive headers from logged requests
• Private class members: Implemented proper private member access patterns using WeakMaps