Release 1.2.1: iCloud sync improvements + ASO multilingual metadata

iCloud sync:
- Force viewContext.refreshAllObjects() on remote change notifications so
  data from other devices is picked up immediately without app restart
- Call refreshFromCloudKit() on foreground to merge any changes made while
  the device was inactive
- Wait up to 10s for initial CloudKit sync on launch before showing onboarding
  (shows "Checking iCloud..." during the wait)
- New OnboardingICloudCheckView: shown on fresh installs with iCloud available,
  lets user restore from iCloud before starting onboarding from scratch

Localization:
- Added de, fr, it, ja, pt-BR lproj folders
- New iCloud onboarding strings in en + es-ES (+ button literals)

ASO metadata (fastlane):
- Updated en-US: new subtitle, keywords, description (fixed "no cloud sync"
  claim), promotional text, release notes
- Added full metadata for es-ES, de-DE, fr-FR, it, ja, pt-BR (63 files total)
- All keyword fields validated ≤100 Unicode chars

Infrastructure:
- Gemfile + Gemfile.lock for fastlane
- Scripts/archive_and_upload_appstore.sh for CI/CD

Version: 1.2.1 (build 7)

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

PortfolioJournal/Views/Sources/AddSourceView.swift

@@ -185,46 +185,7 @@ struct AddSourceView: View {
     }
 
     private func parseDecimal(_ string: String) -> Decimal? {
-        let locale = CurrencyFormatter.locale(for: currencyCode)
-        let stripped = string
-            .replacingOccurrences(of: currencySymbol, with: "")
-            .trimmingCharacters(in: .whitespaces)
-
-        guard !stripped.isEmpty else { return nil }
-
-        let decimalSep = locale.decimalSeparator ?? "."
-        let groupingSep = locale.groupingSeparator ?? ""
-
-        // Detect alternate decimal BEFORE removing separators
-        let usesAlternateDecimal =
-            (decimalSep == "," && stripped.contains(".") && !stripped.contains(",")) ||
-            (decimalSep == "." && stripped.contains(",") && !stripped.contains("."))
-
-        if usesAlternateDecimal {
-            let normalized = stripped
-                .replacingOccurrences(of: groupingSep, with: "")
-                .replacingOccurrences(of: ",", with: ".")
-            let formatter = NumberFormatter()
-            formatter.numberStyle = .decimal
-            formatter.locale = Locale(identifier: "en_US_POSIX")
-            return formatter.number(from: normalized)?.decimalValue
-        }
-
-        let cleaned = stripped.replacingOccurrences(of: groupingSep, with: "")
-        let formatter = NumberFormatter()
-        formatter.numberStyle = .decimal
-        formatter.locale = locale
-
-        if let value = formatter.number(from: cleaned)?.decimalValue {
-            return value
-        }
-
-        // Fallback for mixed locale input
-        let normalized = cleaned
-            .replacingOccurrences(of: decimalSep, with: ".")
-            .replacingOccurrences(of: ",", with: ".")
-        formatter.locale = Locale(identifier: "en_US_POSIX")
-        return formatter.number(from: normalized)?.decimalValue
+        CurrencyFormatter.parseUserInput(string, currencySymbol: currencySymbol)
     }
 
     private var currencySymbol: String {
@@ -559,13 +520,16 @@ struct AddSnapshotView: View {
 
         let repository = SnapshotRepository()
         if let snapshot = snapshot {
+            let contributionTextIsEmpty = viewModel.contributionString
+                .trimmingCharacters(in: .whitespacesAndNewlines)
+                .isEmpty
             repository.updateSnapshot(
                 snapshot,
                 date: viewModel.date,
                 value: value,
                 contribution: viewModel.contribution,
                 notes: viewModel.notes.isEmpty ? nil : viewModel.notes,
-                clearContribution: !viewModel.includeContribution,
+                clearContribution: !viewModel.includeContribution || contributionTextIsEmpty,
                 clearNotes: viewModel.notes.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
             )
         } else {