Add int/double/bool metadata test coverage

- Add intMetadataThreadedIntoFlagMetadata test for .int -> FlagMetadataValue.integer
- Add doubleMetadataThreadedIntoFlagMetadata test for .double -> FlagMetadataValue.double
- Add boolMetadataThreadedIntoFlagMetadata test for .bool -> FlagMetadataValue.boolean

Author: typotter

Tests/DatadogOpenFeatureProviderTests/ProviderEvaluationTests.swift

@@ -209,20 +209,29 @@ internal struct ComplexValueEvaluationTests {
 
 @Suite("ProviderEvaluation Metadata")
 internal struct ProviderEvaluationMetadataTests {
-    @Test("Metadata threaded into flagMetadata")
+    @Test("All primitive metadata types threaded into flagMetadata")
     func metadataThreadedIntoFlagMetadata() async throws {
         let flagDetails = FlagDetails<Bool>(
             key: "test-flag",
             value: true,
             variant: "on",
             reason: "targeting_match",
-            metadata: ["allocationKey": .string("alloc-abc"), "version": .string("2")]
+            metadata: [
+                "allocationKey": .string("alloc-abc"),
+                "version": .string("2"),
+                "count": .int(7),
+                "weight": .double(0.5),
+                "enabled": .bool(false)
+            ]
         )
 
         let evaluation = ProviderEvaluation(flagDetails)
 
         #expect(evaluation.flagMetadata["allocationKey"] == FlagMetadataValue.string("alloc-abc"))
         #expect(evaluation.flagMetadata["version"] == FlagMetadataValue.string("2"))
+        #expect(evaluation.flagMetadata["count"] == FlagMetadataValue.integer(Int64(7)))
+        #expect(evaluation.flagMetadata["weight"] == FlagMetadataValue.double(0.5))
+        #expect(evaluation.flagMetadata["enabled"] == FlagMetadataValue.boolean(false))
     }
 
     @Test("Empty metadata produces empty flagMetadata")