refactor: split connections settings/store

apps/macos/Sources/Clawdbot/ConnectionsSettings+Helpers.swift

@@ -0,0 +1,17 @@
+import AppKit
+
+extension ConnectionsSettings {
+    func date(fromMs ms: Double?) -> Date? {
+        guard let ms else { return nil }
+        return Date(timeIntervalSince1970: ms / 1000)
+    }
+
+    func qrImage(from dataUrl: String) -> NSImage? {
+        guard let comma = dataUrl.firstIndex(of: ",") else { return nil }
+        let header = dataUrl[..<comma]
+        guard header.contains("base64") else { return nil }
+        let base64 = dataUrl[dataUrl.index(after: comma)...]
+        guard let data = Data(base64Encoded: String(base64)) else { return nil }
+        return NSImage(data: data)
+    }
+}