Changed #

• Updated titan dependency to ^1.1.4
• Updated titan_basalt dependency to ^1.12.7

Fixed #

• WASM Compatibility — Changed conditional imports from dart.library.html to dart.library.js_interop for EnvoySocket, EnvoySse, and Transport platform selection. Package is now fully WASM-compatible.

Added #

• Transport Abstraction Layer — Platform-agnostic HTTP transport enabling web compatibility
  • EnvoyTransport — Abstract transport interface with send() and close()
  • TransportResponse — Platform-independent response container (statusCode, headers, bodyBytes)
  • IoEnvoyTransport — dart:io HttpClient implementation for native platforms
  • WebEnvoyTransport — dart:js_interop fetch() implementation for web
  • createTransport() — Factory using conditional imports for automatic platform selection
• Web Stub Files — EnvoyPin and EnvoyProxy stubs for web platform
• 159 New Tests across 4 test files (416 total)
  • transport_test.dart — TransportResponse, IoEnvoyTransport, SSL/Proxy config
  • envoy_extended_test.dart — download, stream, body prep, courier chain
  • cache_extended_test.dart — SWR, TTL, eviction, CachePolicy edge cases
  • courier_extended_test.dart — RetryCourier, AuthCourier, DedupCourier, CookieCourier, Gate, LogCourier
• 7 New Benchmarks (14 total) — body encoding, response decoding, DedupCourier, CookieCourier scaling, MetricsCourier overhead, HTTP round-trip, Dispatch property access

Changed #

• CookieCourier Performance — 16% improvement at 1000 cookies
  • Periodic lazy eviction every 50 requests (was every request)
  • RegExp patterns hoisted to static fields
  • Inline expiry check during cookie lookup

Added #

Core HTTP Client

• Envoy — Full-featured HTTP client with interceptor pipeline, timeouts, redirects, and response streaming
• Missive — Request builder with method, headers, body, query params, and cancel token support
• Dispatch — Response wrapper with status code, headers, body, and timing metadata
• Method — HTTP method enum (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS)
• EnvoyError — Typed error hierarchy with EnvoyErrorType (connectTimeout, sendTimeout, receiveTimeout, cancel, response, other)

Interceptor Pipeline (Couriers)

• Courier — Base interceptor class with onRequest, onResponse, onError hooks
• CourierChain — Interceptor chain with ordered execution and short-circuiting
• LogCourier — Request/response logging with configurable detail levels
• RetryCourier — Automatic retry with exponential backoff and configurable conditions
• AuthCourier — Token injection with automatic refresh on 401 responses
• CacheCourier — HTTP caching with CachePolicy strategies (networkFirst, cacheFirst, staleWhileRevalidate, networkOnly, cacheOnly)
• MetricsCourier — Request metrics collection and Colossus integration
• DedupCourier — Deduplicates concurrent identical GET requests
• CookieCourier — Cookie jar management (set-cookie/cookie headers)

Caching

• EnvoyCache — Cache interface with CacheEntry storage
• MemoryCache — In-memory TTL-based cache with LRU eviction
• CachePolicy — Cache strategy configuration (ttl, staleAge, methods, statusCodes)

Advanced Features

• Recall — Cancel token for aborting in-flight requests
• Parcel — Multipart form data with ParcelFile and ParcelEntry support
• Gate — Request throttling with configurable concurrency limits
• EnvoySocket — WebSocket client with SocketStatus lifecycle management
• EnvoySse — Server-Sent Events client with SseEvent parsing
• EnvoyPin — SSL certificate pinning with SHA-256 fingerprints
• EnvoyProxy — HTTP/SOCKS proxy configuration
• EnvoyMetric — Per-request performance metrics (latency, bytes, status)

Titan Ecosystem Integration

• EnvoyPillar — Pillar base class for HTTP-backed state management
• EnvoyModule — DI module for registering Envoy in Titan's Vault
• EnvoyPillarExtension — envoyQuarry and envoyCodex extensions for route-based data fetching with Quarry and Codex