fix(budget): read the Time Machine quota in the unit tmutil prints

tmutil formats the quota for the user's region whatever LC_ALL says: the
2450 GB quota set on 27.10.2026 came out as `2,45 TB`, the parser read only
"<number> GB", and vm-status kept asking to set a quota that was set. Units
GB/TB/MB and a decimal comma are read now, and the match allows for the
rounding of what tmutil prints.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AU1MhxJW1e9oTB2XvjX8WT

Author: mbeczynski

mac-app/Sources/CloudMachineCore/MachineBudget.swift

@@ -283,7 +283,9 @@ public enum MachineBudget {
   /// Whether the Time Machine quota matches the limit. `nil` quota = none set.
   public static func quotaMatches(currentQuotaGB: Double?, limitGB: Int) -> Bool {
     guard let currentQuotaGB else { return false }
-    return Int(currentQuotaGB.rounded()) == timeMachineQuotaGB(forLimitGB: limitGB)
+    // tmutil rounds what it prints (`2,45 TB` = anything from 2445 to 2455).
+    let wanted = Double(timeMachineQuotaGB(forLimitGB: limitGB))
+    return abs(currentQuotaGB - wanted) <= max(1, wanted * 0.005)
   }
 
   /// One status line: usage against the limit, or why there is none.

mac-app/Sources/CloudMachineCore/TimeMachineStatus.swift

@@ -252,9 +252,7 @@ public enum TimeMachineStatus {
       case "URL": block.url = value
       case "Mount Point": block.mountPoint = value
       case "ID": block.id = value
-      case "Quota":
-        let number = value.split(separator: " ").first.map(String.init) ?? value
-        block.quotaGB = Double(number)
+      case "Quota": block.quotaGB = quotaGB(value)
       default: break
       }
       current = block
@@ -263,6 +261,23 @@ public enum TimeMachineStatus {
     return result
   }
 
+  /// `Quota` as tmutil prints it, in GB. tmutil formats it for the user's
+  /// region whatever `LC_ALL` says: 2450 GB came out as `2,45 TB` on
+  /// 27.10.2026, and reading only "<number> GB" took that for no quota.
+  /// Decimal units, as macOS shows sizes. `nil` = not a size.
+  static func quotaGB(_ value: String) -> Double? {
+    let parts = value.split(separator: " ")
+    guard let first = parts.first,
+      let number = Double(first.replacingOccurrences(of: ",", with: "."))
+    else { return nil }
+    switch parts.count > 1 ? parts[1].uppercased() : "GB" {
+    case "TB": return number * 1000
+    case "GB": return number
+    case "MB": return number / 1000
+    default: return nil
+    }
+  }
+
   /// The registered destinations; `nil` = tmutil DID NOT ANSWER, `[]` = it
   /// answered that there are none.
   public static func destinationsReading() async -> [Destination]? {

mac-app/Tests/CloudMachineAppTests/TimeMachineStatusTests.swift

@@ -145,4 +145,18 @@ final class TimeMachineStatusTests: XCTestCase {
       XCTAssertEqual(TimeMachineStatus.destinations(destinationInfoOutput: answer!), [])
     }
   }
+
+  /// 27.10.2026: tmutil printed the 2450 GB quota as `2,45 TB` (Polish
+  /// region), and the status kept asking to set a quota that was set.
+  func testQuotaIsReadInTheUnitTmutilPrints() {
+    XCTAssertEqual(TimeMachineStatus.quotaGB("300 GB"), 300)
+    XCTAssertEqual(TimeMachineStatus.quotaGB("2,45 TB"), 2450)
+    XCTAssertEqual(TimeMachineStatus.quotaGB("2.45 TB"), 2450)
+    XCTAssertNil(TimeMachineStatus.quotaGB("none"))
+    let parsed = TimeMachineStatus.destinations(
+      destinationInfoOutput: "Name          : CloudMachine\nQuota         : 2,45 TB\n")
+    XCTAssertEqual(parsed.first?.quotaGB, 2450)
+    XCTAssertTrue(MachineBudget.quotaMatches(currentQuotaGB: 2450, limitGB: 3500))
+    XCTAssertFalse(MachineBudget.quotaMatches(currentQuotaGB: 2000, limitGB: 3500))
+  }
 }