v3.3.9

Patch Changes

• 3607d13: SMOODEV-968: .NET — add sliding-window rate limiter to SmooFetchBuilder.WithRateLimit(maxRequests, window, onRejected?). Built on System.Threading.RateLimiting.SlidingWindowRateLimiter so state is shared across every call on the constructed SmooFetch, matching the Rust / Go ports. Requests acquire a permit before dispatch and the optional OnRejected callback fires for every would-be rejection for observability. Closes the parity gap left open by SMOODEV-946.
• 23e86e9: SMOODEV-969: Python — share the sliding-window rate-limiter state across fetch() calls made through a single FetchBuilder. Previously _client.fetch() reconstructed the limiter per call, defeating the cross-call rate limit. The builder now lazily constructs one SlidingWindowRateLimiter, hands the same instance to every fetch() it dispatches, and rebuilds it when the caller changes options via with_rate_limit. A new SlidingWindowRateLimiter.acquire_wait() method blocks until a slot is free (mirroring the Rust port's acquire loop) so successive builder-mediated calls naturally queue instead of raising RateLimitError. The low-level fetch() entrypoint retains its raise-on-full acquire() semantics for back-compat with rate_limit_retry plumbing.