update core services

src/Throttlr.Api.RateLimit/Abstractions/ISystemClock.cs

@@ -1,12 +1,9 @@
 using System;
-using System.Collections.Generic;
-using System.Text;
 
 namespace RateLimit.Throttlr.Abstractions
 {
     /// <summary>
     /// Provides an abstraction for accessing the current UTC system clock.
-    /// Useful for unit testing and time-based rate limiting algorithms.
     /// </summary>
     public interface ISystemClock
     {

src/Throttlr.Api.RateLimit/Core/Counter/SlidingWindowCounter.cs

@@ -1,6 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Text;
 
 namespace RateLimit.Throttlr.Core.Counter
 {

src/Throttlr.Api.RateLimit/Core/FixedWindowRateLimiter.cs

@@ -18,12 +18,6 @@ internal class FixedWindowRateLimiter : IRateLimiter
         private readonly ISystemClock _clock;
         private readonly RateLimitPolicy _policy;
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="FixedWindowRateLimiter"/> class.
-        /// </summary>
-        /// <param name="store">Backing store for counters.</param>
-        /// <param name="clock">Clock abstraction for testability.</param>
-        /// <param name="policy">Rate limit policy definition.</param>
         public FixedWindowRateLimiter(
             IRateLimitStore store,
             ISystemClock clock,

src/Throttlr.Api.RateLimit/Core/RateLimitResult.cs

@@ -2,11 +2,11 @@
 
 namespace RateLimit.Throttlr.Core
 {
+    /// <summary>
+    /// Represents the result of a rate limit check.
+    /// </summary>
     public sealed class RateLimitResult
-    {
-        /// <summary>
-        /// Represents the result of a rate limit check.
-        /// </summary>
+    {        
         private RateLimitResult(bool isAllowed, int? retryAfterSeconds = null)
         {
             IsAllowed = isAllowed;

src/Throttlr.Api.RateLimit/Core/SlidingWindowRateLimiter.cs

@@ -18,9 +18,6 @@ internal class SlidingWindowRateLimiter : IRateLimiter
         private readonly ISystemClock _clock;
         private readonly RateLimitPolicy _policy;
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="SlidingWindowRateLimiter"/> class.
-        /// </summary>
         public SlidingWindowRateLimiter(
             IRateLimitStore store,
             ISystemClock clock,
@@ -31,7 +28,6 @@ public SlidingWindowRateLimiter(
             _policy = policy ?? throw new ArgumentNullException(nameof(policy));
         }
 
-        /// <inheritdoc />
         /// <inheritdoc />
         public async Task<RateLimitResult> ShouldLimitAsync(
             string key,

src/Throttlr.Api.RateLimit/Core/Store/InMemoryRateLimitStore.cs

@@ -13,10 +13,7 @@ namespace RateLimit.Throttlr.Core.Store
     internal class InMemoryRateLimitStore : IRateLimitStore
     {
         private readonly ConcurrentDictionary<string, RateLimitCounter> _counters;
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="InMemoryRateLimitStore"/> class.
-        /// </summary>
+
         public InMemoryRateLimitStore()
         {
             _counters = new ConcurrentDictionary<string, RateLimitCounter>(

src/Throttlr.Api.RateLimit/Core/SystemClock.cs

@@ -5,9 +5,6 @@
 
 namespace RateLimit.Throttlr.Core
 {
-    /// <summary>
-    /// Default implementation of <see cref="ISystemClock"/> that uses <see cref="DateTimeOffset.UtcNow"/>.
-    /// </summary>
     public sealed class SystemClock : ISystemClock
     {
         /// <inheritdoc />

src/Throttlr.Api.RateLimit/Core/TokenBucketRateLimiter.cs

@@ -20,12 +20,6 @@ public sealed class TokenBucketRateLimiter : IRateLimiter
         private readonly int _capacity;
         private readonly double _tokensPerSecond;
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="TokenBucketRateLimiter"/> class.
-        /// </summary>
-        /// <param name="store">The rate limit store.</param>
-        /// <param name="policy">The rate limit policy.</param>
-        /// <param name="clock">The system clock.</param>
         public TokenBucketRateLimiter(
             IRateLimitStore store,
             ISystemClock clock,