Release 1.5

versionCode 6. public_html/ changed, so the service worker cache goes to
bgclock-v21.

Not confirmed on device: the force-quit-and-reopen check from RELEASING.md
step 4 has not been run for this build. Nothing in it touches storage, timing
or the state machine — the change is a label, an inherited colour and a lit
button, all written from render() — but the check is still owed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

android/app/build.gradle.kts

@@ -12,8 +12,8 @@ android {
         applicationId = "nl.hansdezwart.bgclock"
         minSdk = 26
         targetSdk = 36
-        versionCode = 5
-        versionName = "1.4"
+        versionCode = 6
+        versionName = "1.5"
     }
 
     compileOptions {