fix(mobile): ignore patch releases for app version alerts (#23565)

* fix(mobile): ignore patch releases for app version alerts

* chore: make difference type nullable to indicate when versions match

* chore: add error handling for semver parsing

* chore: tests

mobile/lib/utils/semver.dart

@@ -1,3 +1,5 @@
+enum SemVerType { major, minor, patch }
+
 class SemVer {
   final int major;
   final int minor;
@@ -15,8 +17,20 @@ class SemVer {
   }
 
   factory SemVer.fromString(String version) {
+    if (version.toLowerCase().startsWith("v")) {
+      version = version.substring(1);
+    }
+
     final parts = version.split("-")[0].split('.');
-    return SemVer(major: int.parse(parts[0]), minor: int.parse(parts[1]), patch: int.parse(parts[2]));
+    if (parts.length != 3) {
+      throw FormatException('Invalid semantic version string: $version');
+    }
+
+    try {
+      return SemVer(major: int.parse(parts[0]), minor: int.parse(parts[1]), patch: int.parse(parts[2]));
+    } catch (e) {
+      throw FormatException('Invalid semantic version string: $version');
+    }
   }
 
   bool operator >(SemVer other) {
@@ -54,6 +68,20 @@ class SemVer {
     return other is SemVer && other.major == major && other.minor == minor && other.patch == patch;
   }
 
+  SemVerType? differenceType(SemVer other) {
+    if (major != other.major) {
+      return SemVerType.major;
+    }
+    if (minor != other.minor) {
+      return SemVerType.minor;
+    }
+    if (patch != other.patch) {
+      return SemVerType.patch;
+    }
+
+    return null;
+  }
+
   @override
   int get hashCode => major.hashCode ^ minor.hashCode ^ patch.hashCode;
 }