Some messy stuff cleaned up in Inventory UI

LabWise/ChemicalDetailView.swift

@@ -1,6 +1,52 @@
 import SwiftUI
 import LabWiseKit
 
+private let isoDateFormatter: ISO8601DateFormatter = {
+    let f = ISO8601DateFormatter()
+    f.formatOptions = [.withFullDate]
+    return f
+}()
+
+private let isoTimestampFormatter: ISO8601DateFormatter = {
+    let f = ISO8601DateFormatter()
+    f.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
+    return f
+}()
+
+private let displayDateFormatter: DateFormatter = {
+    let f = DateFormatter()
+    f.dateStyle = .medium
+    f.timeStyle = .none
+    return f
+}()
+
+private let displayTimestampFormatter: DateFormatter = {
+    let f = DateFormatter()
+    f.dateStyle = .medium
+    f.timeStyle = .short
+    return f
+}()
+
+private func formatDate(_ iso: String?) -> String {
+    guard let iso else { return "" }
+    if let date = isoDateFormatter.date(from: iso) {
+        return displayDateFormatter.string(from: date)
+    }
+    // Fallback: try full timestamp (e.g. "2025-03-01T00:00:00.000Z")
+    if let date = isoTimestampFormatter.date(from: iso) {
+        return displayDateFormatter.string(from: date)
+    }
+    return iso
+}
+
+private func formatTimestamp(_ iso: String?) -> String {
+    guard let iso else { return "" }
+    if let date = isoTimestampFormatter.date(from: iso) {
+        return displayTimestampFormatter.string(from: date)
+    }
+    return iso
+}
+
 struct ChemicalDetailView: View {
     @State private var chemical: Chemical
     @State private var showEdit = false
@@ -56,8 +102,8 @@ struct ChemicalDetailView: View {
                 if let lot = chemical.lotNumber {
                     LabeledContent("Lot #", value: lot)
                 }
-                if let exp = chemical.expirationDate {
-                    LabeledContent("Expiration", value: exp)
+                if let exp = chemical.expirationDate, !exp.isEmpty {
+                    LabeledContent("Expiration", value: formatDate(exp))
                 }
                 if let barcode = chemical.barcode {
                     LabeledContent("Barcode", value: barcode)
@@ -76,10 +122,10 @@ struct ChemicalDetailView: View {
 
             Section("Record") {
                 if let created = chemical.createdAt {
-                    LabeledContent("Created", value: created)
+                    LabeledContent("Created", value: formatTimestamp(created))
                 }
                 if let updated = chemical.updatedAt {
-                    LabeledContent("Updated", value: updated)
+                    LabeledContent("Updated", value: formatTimestamp(updated))
                 }
             }
         }