fix(scripts): anchor ver.sh working directory to script location

Add `cd "$(dirname "$0")"` so both invocation paths work correctly:
- Direct: `./ver.sh` from repo root
- Via Gradle: `./gradlew version` (runs from framework/ directory)

Without this, the Gradle invocation resolves versionPath to
framework/framework/src/... which does not exist.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Little-Peony

ver.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+cd "$(dirname "$0")"
 currentBranch=$(git rev-parse --abbrev-ref HEAD)
 
 if [ "$currentBranch"x != "master"x ]