Potential fix for SpeziFirebase crash

LifeSpace/LifeSpaceStandard.swift

@@ -83,13 +83,19 @@ actor LifeSpaceStandard: Standard, EnvironmentAccessible, HealthKitConstraint, O
         do {
             let resource = try sample.resource
 
-            let data = HealthKitDataPoint(
-                studyID: studyID,
-                UpdatedBy: userId,
-                resource: resource
-            )
+            let data = try JSONEncoder().encode(resource)
 
-            try await healthKitDocument(id: sample.id).setData(from: data)
+            /// Convert the FHIR resource into a dictionary so we can add fields necessary for the backend
+            guard var dataDict = try JSONSerialization.jsonObject(with: data, options: .fragmentsAllowed) as? [String: Any] else {
+                logger.error("Cannot serialize data.")
+                return
+            }
+
+            /// The `UpdatedBy` field is checked by the mHealth platform security rules
+            dataDict["UpdatedBy"] = userId
+            dataDict["studyID"] = studyID
+
+            try await healthKitDocument(id: sample.id).setData(dataDict)
         } catch {
             logger.error("Could not store HealthKit sample: \(error)")
         }