Bump version to 1.3.1

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -104,7 +104,7 @@ Only one tab polls at a time, so opening the dashboard twice does not double the
 The script header points Tampermonkey at this repo:
 
 ```
-// @version      1.3.0
+// @version      1.3.1
 // @updateURL    https://gitea.mscloud.site/mans/sas-bonus-watch/raw/branch/main/sas-bonus-watch.user.js
 // @downloadURL  https://gitea.mscloud.site/mans/sas-bonus-watch/raw/branch/main/sas-bonus-watch.user.js
 ```
@@ -127,7 +127,7 @@ Requirements:
 
 1. Edit `sas-bonus-watch.user.js`.
 2. Run the tests: `node --test` (Node 20+).
-3. **Bump `@version`** (e.g. 1.3.0 → 1.3.1). Without this, nobody gets the update.
+3. **Bump `@version`** (e.g. 1.3.1 → 1.3.2). Without this, nobody gets the update.
 4. Commit and push to `main`.
 
 ## Development