0.1.70-beta2 (build 273): version bump

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016n4hSXVu6wLR4RCfnt6PPG

Author: scgopi

Project.swift

@@ -84,8 +84,8 @@ let project = Project(
                 // (#33). Before that the suffix lived on the tag only, so betas 48/49
                 // of the 0.1.15 line read "0.1.15" and are told by the build number
                 // apart.
-                "CFBundleShortVersionString": "0.1.70-beta1",
-                "CFBundleVersion": "272",
+                "CFBundleShortVersionString": "0.1.70-beta2",
+                "CFBundleVersion": "273",
             ]),
             resources: [
                 "graphcode/Resources/**"