Fix crash in isNewer when latestVersion is empty; bump to 1.1.2-beta.4

ClaudeChecker/Info.plist

@@ -15,7 +15,7 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.1.2-beta.3</string>
+    <string>1.1.2-beta.4</string>
     <key>CFBundleVersion</key>
     <string>35</string>
     <key>LSMinimumSystemVersion</key>

ClaudeChecker/UpdateManager.swift

@@ -319,6 +319,7 @@ class UpdateManager: ObservableObject {
 
     private func isNewer(_ version: String, than current: String) -> Bool {
         func parse(_ v: String) -> (base: [Int], pre: [Int]?) {
+            guard !v.isEmpty else { return ([], nil) }
             let halves = v.split(separator: "-", maxSplits: 1)
             let base = halves[0].split(separator: ".").compactMap { Int($0) }
             let pre = halves.count > 1 ? String(halves[1]).split(separator: ".").compactMap { Int($0) } : nil

version-beta.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.1.2-beta.2",
-  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.1.2-beta.2/ClaudeChecker.zip",
+  "version": "1.1.2-beta.3",
+  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.1.2-beta.3/ClaudeChecker.zip",
   "notes": "## What's new in v1.1.2\n\n### Cleaner card headers\nRemoved the redundant \"5h\" / \"7d\" window labels from each card row — the section headers already make it clear which limit is which."
 }