Release v1.1.0

Cirreum.AuthenticationProvider 1.1.0

Summary

Adds a thin auth.AddCoordination(...) forwarder so auth schemes can register a
coordination backend (replay-nonce / throttle) inside the AddAuthentication
composition, and takes a dependency on the new standalone Cirreum.Coordination
primitive. Re-pins Cirreum.Contracts to the code-first caching foundation (1.1.1).

Strictly additive.

Why

Some auth schemes need atomic coordination: SignedRequest's strict-nonce posture needs
a single-use claim (IReplayGuard) to reject replays; rate-limited schemes need a
fixed-window counter (IRequestThrottle). Those primitives are not auth-specific — they
were extracted into the neutral, dependency-light Cirreum.Coordination package so any
consumer can share them and a single chosen backend. This release wires that primitive
into the authentication builder so schemes get a natural auth.AddCoordination(...) verb
without AuthenticationProvider owning the primitives itself.

What's new

auth.AddCoordination(...)

builder.AddAuthentication(auth => {
    auth.AddSignedRequest<MyResolver>(o => o.ConfigureValidation(v => v.RequireStrictNonce = true));
    auth.AddCoordination(c => c.UseInMemory());   // or c.UseRedis() with Cirreum.Coordination.Redis
});

A thin convenience on IAuthenticationBuilder that forwards to
services.AddCoordination(...) from Cirreum.Coordination. Registration is idempotent
and order-independent: a scheme pulls the requirement it needs, the app chooses the
backend. The primitives (IReplayGuard, IRequestThrottle, the in-memory backend, and
the posture validator) live in Cirreum.Coordination — see that package's release notes.

Compatibility

• Additive. No changes to the existing AuthenticationProvider surface.
• New dependency: Cirreum.Coordination 1.0.0.
• Re-pinned: Cirreum.Contracts → 1.1.1 (code-first caching foundation; no source
  impact — none of the renamed/removed cache types are referenced here).

See also

• Cirreum.Coordination — the neutral atomic-coordination primitives the forwarder delegates to
• Cirreum.Coordination.Redis — a distributed backend for the same primitives