Initialize determination.insulinReq to 0

Trio/Sources/APS/OpenAPSSwift/DetermineBasal/DetermineBasalGenerator.swift

@@ -311,7 +311,7 @@ enum DeterminationGenerator {
             id: UUID(),
             reason: reason,
             units: nil,
-            insulinReq: nil,
+            insulinReq: 0,
             eventualBG: Int(forecastResult.eventualGlucose.jsRounded()),
             sensitivityRatio: sensitivityRatio, // this would only the AS-adjusted one for now
             rate: nil,

TrioTests/OpenAPSSwiftTests/DetermineBasalJsonTests.swift

@@ -103,7 +103,7 @@ import Testing
         // this test is meant for one-off analysis so it's ok to hard code
         // a file, just make sure to _not_ check in updates to this to
         // avoid polluting our change logs
-        let algorithmComparison = try await HttpFiles.downloadFile(at: "/files/f5042994-ab6a-413e-bccf-e8f7b8660b8f.1.json")
+        let algorithmComparison = try await HttpFiles.downloadFile(at: "/files/6e9415ea-b890-47eb-bb37-4a9a9ad432d3.2.json")
         let determineBasalInput = algorithmComparison.determineBasalInput!
 
         let encoder = JSONCoding.encoder