work work hard work

src/__Libraries/StellaOps.Router.Gateway/RateLimit/RateLimitRule.cs

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+// -----------------------------------------------------------------------------
+// RateLimitRule.cs
+// Sprint: SPRINT_1200_001_003_router_rate_limiting_rule_stacking
+// Task: 3.1 - Extend Configuration for Rule Arrays
+// Description: Single rate limit rule definition (window + max requests)
+// -----------------------------------------------------------------------------
+
+using Microsoft.Extensions.Configuration;
+
+namespace StellaOps.Router.Gateway.RateLimit;
+
+/// <summary>
+/// A single rate limit rule (window + max requests).
+/// </summary>
+public sealed class RateLimitRule
+{
+    [ConfigurationKeyName("per_seconds")]
+    public int PerSeconds { get; set; }
+
+    [ConfigurationKeyName("max_requests")]
+    public int MaxRequests { get; set; }
+
+    [ConfigurationKeyName("name")]
+    public string? Name { get; set; }
+
+    public void Validate(string path)
+    {
+        if (PerSeconds <= 0)
+            throw new ArgumentException($"{path}: per_seconds must be > 0");
+
+        if (MaxRequests <= 0)
+            throw new ArgumentException($"{path}: max_requests must be > 0");
+    }
+}
+